Home / 437,374.80-656,321.40-288,043.20

Finding the Fourth Proportional to 437,374.80, 656,321.40 and 288,043.20

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Solution

The fourth proportional to 437,374.80, 656,321.40 and 288,043.20 is: 432,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,374.80 : 656,321.40 = 288,043.20 : x
  2. Step 2: Convert to fraction form
    437,374.80/656,321.40 = 288,043.20/x
  3. Step 3: Cross multiply
    437,374.80x = 656,321.40 × 288,043.20
  4. Step 4: Simplify right side
    437,374.80x = 189,048,916,284.48
  5. Step 5: Solve for x
    x = 189,048,916,284.48/437,374.80
  6. Step 6: Final answer
    x = 432,235.50

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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.