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Finding the Fourth Proportional to 830,793.60, 1,246,773.60 and 357,818.40

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Solution

The fourth proportional to 830,793.60, 1,246,773.60 and 357,818.40 is: 536,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,793.60 : 1,246,773.60 = 357,818.40 : x
  2. Step 2: Convert to fraction form
    830,793.60/1,246,773.60 = 357,818.40/x
  3. Step 3: Cross multiply
    830,793.60x = 1,246,773.60 × 357,818.40
  4. Step 4: Simplify right side
    830,793.60x = 446,118,534,714.24
  5. Step 5: Solve for x
    x = 446,118,534,714.24/830,793.60
  6. Step 6: Final answer
    x = 536,978.78

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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.