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Finding the Fourth Proportional to 611,820.56, 917,748.94 and 292,006.13

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Solution

The fourth proportional to 611,820.56, 917,748.94 and 292,006.13 is: 438,017.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,820.56 : 917,748.94 = 292,006.13 : x
  2. Step 2: Convert to fraction form
    611,820.56/917,748.94 = 292,006.13/x
  3. Step 3: Cross multiply
    611,820.56x = 917,748.94 × 292,006.13
  4. Step 4: Simplify right side
    611,820.56x = 267,988,316,281.00
  5. Step 5: Solve for x
    x = 267,988,316,281.00/611,820.56
  6. Step 6: Final answer
    x = 438,017.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.