Home / 437,464.80-656,456.40-288,133.20

Finding the Fourth Proportional to 437,464.80, 656,456.40 and 288,133.20

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Solution

The fourth proportional to 437,464.80, 656,456.40 and 288,133.20 is: 432,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,464.80 : 656,456.40 = 288,133.20 : x
  2. Step 2: Convert to fraction form
    437,464.80/656,456.40 = 288,133.20/x
  3. Step 3: Cross multiply
    437,464.80x = 656,456.40 × 288,133.20
  4. Step 4: Simplify right side
    437,464.80x = 189,146,883,192.48
  5. Step 5: Solve for x
    x = 189,146,883,192.48/437,464.80
  6. Step 6: Final answer
    x = 432,370.52

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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.