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Finding the Fourth Proportional to 637,947.32, 880,369.47 and 351,466.71

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Solution

The fourth proportional to 637,947.32, 880,369.47 and 351,466.71 is: 485,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,947.32 : 880,369.47 = 351,466.71 : x
  2. Step 2: Convert to fraction form
    637,947.32/880,369.47 = 351,466.71/x
  3. Step 3: Cross multiply
    637,947.32x = 880,369.47 × 351,466.71
  4. Step 4: Simplify right side
    637,947.32x = 309,420,561,205.34
  5. Step 5: Solve for x
    x = 309,420,561,205.34/637,947.32
  6. Step 6: Final answer
    x = 485,025.26

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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.