Home / 637,944.20-880,363.28-351,461.76

Finding the Fourth Proportional to 637,944.20, 880,363.28 and 351,461.76

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Solution

The fourth proportional to 637,944.20, 880,363.28 and 351,461.76 is: 485,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,944.20 : 880,363.28 = 351,461.76 : x
  2. Step 2: Convert to fraction form
    637,944.20/880,363.28 = 351,461.76/x
  3. Step 3: Cross multiply
    637,944.20x = 880,363.28 × 351,461.76
  4. Step 4: Simplify right side
    637,944.20x = 309,414,027,828.17
  5. Step 5: Solve for x
    x = 309,414,027,828.17/637,944.20
  6. Step 6: Final answer
    x = 485,017.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.