Home / 485,050.70-727,576.05-408,068.30

Finding the Fourth Proportional to 485,050.70, 727,576.05 and 408,068.30

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Solution

The fourth proportional to 485,050.70, 727,576.05 and 408,068.30 is: 612,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,050.70 : 727,576.05 = 408,068.30 : x
  2. Step 2: Convert to fraction form
    485,050.70/727,576.05 = 408,068.30/x
  3. Step 3: Cross multiply
    485,050.70x = 727,576.05 × 408,068.30
  4. Step 4: Simplify right side
    485,050.70x = 296,900,721,844.22
  5. Step 5: Solve for x
    x = 296,900,721,844.22/485,050.70
  6. Step 6: Final answer
    x = 612,102.45

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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.