Home / 977,408.80-1,466,113.20-346,386.40

Finding the Fourth Proportional to 977,408.80, 1,466,113.20 and 346,386.40

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Solution

The fourth proportional to 977,408.80, 1,466,113.20 and 346,386.40 is: 519,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,408.80 : 1,466,113.20 = 346,386.40 : x
  2. Step 2: Convert to fraction form
    977,408.80/1,466,113.20 = 346,386.40/x
  3. Step 3: Cross multiply
    977,408.80x = 1,466,113.20 × 346,386.40
  4. Step 4: Simplify right side
    977,408.80x = 507,841,673,340.48
  5. Step 5: Solve for x
    x = 507,841,673,340.48/977,408.80
  6. Step 6: Final answer
    x = 519,579.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.