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Finding the Fourth Proportional to 558,409.60, 836,626.20 and 539,909.20

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Solution

The fourth proportional to 558,409.60, 836,626.20 and 539,909.20 is: 808,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,409.60 : 836,626.20 = 539,909.20 : x
  2. Step 2: Convert to fraction form
    558,409.60/836,626.20 = 539,909.20/x
  3. Step 3: Cross multiply
    558,409.60x = 836,626.20 × 539,909.20
  4. Step 4: Simplify right side
    558,409.60x = 451,702,182,341.04
  5. Step 5: Solve for x
    x = 451,702,182,341.04/558,409.60
  6. Step 6: Final answer
    x = 808,908.34

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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.