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Finding the Fourth Proportional to 637,681.40, 880,040.14 and 351,201.40

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Solution

The fourth proportional to 637,681.40, 880,040.14 and 351,201.40 is: 484,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,681.40 : 880,040.14 = 351,201.40 : x
  2. Step 2: Convert to fraction form
    637,681.40/880,040.14 = 351,201.40/x
  3. Step 3: Cross multiply
    637,681.40x = 880,040.14 × 351,201.40
  4. Step 4: Simplify right side
    637,681.40x = 309,071,329,224.20
  5. Step 5: Solve for x
    x = 309,071,329,224.20/637,681.40
  6. Step 6: Final answer
    x = 484,679.86

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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.