Home / 977,126.20-1,465,689.30-346,103.80

Finding the Fourth Proportional to 977,126.20, 1,465,689.30 and 346,103.80

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Solution

The fourth proportional to 977,126.20, 1,465,689.30 and 346,103.80 is: 519,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,126.20 : 1,465,689.30 = 346,103.80 : x
  2. Step 2: Convert to fraction form
    977,126.20/1,465,689.30 = 346,103.80/x
  3. Step 3: Cross multiply
    977,126.20x = 1,465,689.30 × 346,103.80
  4. Step 4: Simplify right side
    977,126.20x = 507,280,636,349.34
  5. Step 5: Solve for x
    x = 507,280,636,349.34/977,126.20
  6. Step 6: Final answer
    x = 519,155.70

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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.