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Finding the Fourth Proportional to 670,059.58, 924,897.72 and 428,991.44

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Solution

The fourth proportional to 670,059.58, 924,897.72 and 428,991.44 is: 592,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,059.58 : 924,897.72 = 428,991.44 : x
  2. Step 2: Convert to fraction form
    670,059.58/924,897.72 = 428,991.44/x
  3. Step 3: Cross multiply
    670,059.58x = 924,897.72 × 428,991.44
  4. Step 4: Simplify right side
    670,059.58x = 396,773,204,755.52
  5. Step 5: Solve for x
    x = 396,773,204,755.52/670,059.58
  6. Step 6: Final answer
    x = 592,146.16

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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.