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Finding the Fourth Proportional to 637,422.19, 880,432.53 and 462,713.55

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Solution

The fourth proportional to 637,422.19, 880,432.53 and 462,713.55 is: 639,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,422.19 : 880,432.53 = 462,713.55 : x
  2. Step 2: Convert to fraction form
    637,422.19/880,432.53 = 462,713.55/x
  3. Step 3: Cross multiply
    637,422.19x = 880,432.53 × 462,713.55
  4. Step 4: Simplify right side
    637,422.19x = 407,388,064,010.18
  5. Step 5: Solve for x
    x = 407,388,064,010.18/637,422.19
  6. Step 6: Final answer
    x = 639,118.11

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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.