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Finding the Fourth Proportional to 516,760.02, 713,125.62 and 290,405.52

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Solution

The fourth proportional to 516,760.02, 713,125.62 and 290,405.52 is: 400,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,760.02 : 713,125.62 = 290,405.52 : x
  2. Step 2: Convert to fraction form
    516,760.02/713,125.62 = 290,405.52/x
  3. Step 3: Cross multiply
    516,760.02x = 713,125.62 × 290,405.52
  4. Step 4: Simplify right side
    516,760.02x = 207,095,616,501.42
  5. Step 5: Solve for x
    x = 207,095,616,501.42/516,760.02
  6. Step 6: Final answer
    x = 400,757.82

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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.