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Finding the Fourth Proportional to 499,418.46, 750,751.61 and 400,659.08

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Solution

The fourth proportional to 499,418.46, 750,751.61 and 400,659.08 is: 602,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,418.46 : 750,751.61 = 400,659.08 : x
  2. Step 2: Convert to fraction form
    499,418.46/750,751.61 = 400,659.08/x
  3. Step 3: Cross multiply
    499,418.46x = 750,751.61 × 400,659.08
  4. Step 4: Simplify right side
    499,418.46x = 300,795,443,614.07
  5. Step 5: Solve for x
    x = 300,795,443,614.07/499,418.46
  6. Step 6: Final answer
    x = 602,291.40

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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.