Home / 977,134.40-1,465,701.60-345,966.20

Finding the Fourth Proportional to 977,134.40, 1,465,701.60 and 345,966.20

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Solution

The fourth proportional to 977,134.40, 1,465,701.60 and 345,966.20 is: 518,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,134.40 : 1,465,701.60 = 345,966.20 : x
  2. Step 2: Convert to fraction form
    977,134.40/1,465,701.60 = 345,966.20/x
  3. Step 3: Cross multiply
    977,134.40x = 1,465,701.60 × 345,966.20
  4. Step 4: Simplify right side
    977,134.40x = 507,083,212,885.92
  5. Step 5: Solve for x
    x = 507,083,212,885.92/977,134.40
  6. Step 6: Final answer
    x = 518,949.30

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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.