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Finding the Fourth Proportional to 535,924.80, 803,887.20 and 487,713.60

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Solution

The fourth proportional to 535,924.80, 803,887.20 and 487,713.60 is: 731,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,924.80 : 803,887.20 = 487,713.60 : x
  2. Step 2: Convert to fraction form
    535,924.80/803,887.20 = 487,713.60/x
  3. Step 3: Cross multiply
    535,924.80x = 803,887.20 × 487,713.60
  4. Step 4: Simplify right side
    535,924.80x = 392,066,720,305.92
  5. Step 5: Solve for x
    x = 392,066,720,305.92/535,924.80
  6. Step 6: Final answer
    x = 731,570.40

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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.