Home / 437,867.40-656,801.10-288,276.60

Finding the Fourth Proportional to 437,867.40, 656,801.10 and 288,276.60

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Solution

The fourth proportional to 437,867.40, 656,801.10 and 288,276.60 is: 432,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,867.40 : 656,801.10 = 288,276.60 : x
  2. Step 2: Convert to fraction form
    437,867.40/656,801.10 = 288,276.60/x
  3. Step 3: Cross multiply
    437,867.40x = 656,801.10 × 288,276.60
  4. Step 4: Simplify right side
    437,867.40x = 189,340,387,984.26
  5. Step 5: Solve for x
    x = 189,340,387,984.26/437,867.40
  6. Step 6: Final answer
    x = 432,414.90

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1.5x scale

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.