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Finding the Fourth Proportional to 560,577.60, 838,898.10 and 383,430.60

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Solution

The fourth proportional to 560,577.60, 838,898.10 and 383,430.60 is: 573,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,577.60 : 838,898.10 = 383,430.60 : x
  2. Step 2: Convert to fraction form
    560,577.60/838,898.10 = 383,430.60/x
  3. Step 3: Cross multiply
    560,577.60x = 838,898.10 × 383,430.60
  4. Step 4: Simplify right side
    560,577.60x = 321,659,201,821.86
  5. Step 5: Solve for x
    x = 321,659,201,821.86/560,577.60
  6. Step 6: Final answer
    x = 573,799.60

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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.