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Finding the Fourth Proportional to 670,062.58, 924,901.86 and 428,994.44

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Solution

The fourth proportional to 670,062.58, 924,901.86 and 428,994.44 is: 592,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,062.58 : 924,901.86 = 428,994.44 : x
  2. Step 2: Convert to fraction form
    670,062.58/924,901.86 = 428,994.44/x
  3. Step 3: Cross multiply
    670,062.58x = 924,901.86 × 428,994.44
  4. Step 4: Simplify right side
    670,062.58x = 396,777,755,485.66
  5. Step 5: Solve for x
    x = 396,777,755,485.66/670,062.58
  6. Step 6: Final answer
    x = 592,150.30

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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.