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Finding the Fourth Proportional to 908,487.64, 1,253,696.70 and 506,071

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Solution

The fourth proportional to 908,487.64, 1,253,696.70 and 506,071 is: 698,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,487.64 : 1,253,696.70 = 506,071 : x
  2. Step 2: Convert to fraction form
    908,487.64/1,253,696.70 = 506,071/x
  3. Step 3: Cross multiply
    908,487.64x = 1,253,696.70 × 506,071
  4. Step 4: Simplify right side
    908,487.64x = 634,459,542,665.70
  5. Step 5: Solve for x
    x = 634,459,542,665.70/908,487.64
  6. Step 6: Final answer
    x = 698,368.93

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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.