Home / 487,529.20-731,293.80-328,096.90

Finding the Fourth Proportional to 487,529.20, 731,293.80 and 328,096.90

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Solution

The fourth proportional to 487,529.20, 731,293.80 and 328,096.90 is: 492,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,529.20 : 731,293.80 = 328,096.90 : x
  2. Step 2: Convert to fraction form
    487,529.20/731,293.80 = 328,096.90/x
  3. Step 3: Cross multiply
    487,529.20x = 731,293.80 × 328,096.90
  4. Step 4: Simplify right side
    487,529.20x = 239,935,228,769.22
  5. Step 5: Solve for x
    x = 239,935,228,769.22/487,529.20
  6. Step 6: Final answer
    x = 492,145.35

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Similar ratio
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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.