Home / 516,277.28-712,564.64-329,889.59

Finding the Fourth Proportional to 516,277.28, 712,564.64 and 329,889.59

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Solution

The fourth proportional to 516,277.28, 712,564.64 and 329,889.59 is: 455,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,277.28 : 712,564.64 = 329,889.59 : x
  2. Step 2: Convert to fraction form
    516,277.28/712,564.64 = 329,889.59/x
  3. Step 3: Cross multiply
    516,277.28x = 712,564.64 × 329,889.59
  4. Step 4: Simplify right side
    516,277.28x = 235,067,657,070.06
  5. Step 5: Solve for x
    x = 235,067,657,070.06/516,277.28
  6. Step 6: Final answer
    x = 455,312.81

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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.