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Finding the Fourth Proportional to 506,604, 699,053.04 and 280,218.72

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Solution

The fourth proportional to 506,604, 699,053.04 and 280,218.72 is: 386,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,604 : 699,053.04 = 280,218.72 : x
  2. Step 2: Convert to fraction form
    506,604/699,053.04 = 280,218.72/x
  3. Step 3: Cross multiply
    506,604x = 699,053.04 × 280,218.72
  4. Step 4: Simplify right side
    506,604x = 195,887,748,080.91
  5. Step 5: Solve for x
    x = 195,887,748,080.91/506,604
  6. Step 6: Final answer
    x = 386,668.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.