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Finding the Fourth Proportional to 637,973.92, 880,404.05 and 351,491.50

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Solution

The fourth proportional to 637,973.92, 880,404.05 and 351,491.50 is: 485,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,973.92 : 880,404.05 = 351,491.50 : x
  2. Step 2: Convert to fraction form
    637,973.92/880,404.05 = 351,491.50/x
  3. Step 3: Cross multiply
    637,973.92x = 880,404.05 × 351,491.50
  4. Step 4: Simplify right side
    637,973.92x = 309,454,542,119.81
  5. Step 5: Solve for x
    x = 309,454,542,119.81/637,973.92
  6. Step 6: Final answer
    x = 485,058.29

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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.