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Finding the Fourth Proportional to 437,557.60, 656,336.40 and 288,258.40

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Solution

The fourth proportional to 437,557.60, 656,336.40 and 288,258.40 is: 432,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,557.60 : 656,336.40 = 288,258.40 : x
  2. Step 2: Convert to fraction form
    437,557.60/656,336.40 = 288,258.40/x
  3. Step 3: Cross multiply
    437,557.60x = 656,336.40 × 288,258.40
  4. Step 4: Simplify right side
    437,557.60x = 189,194,480,525.76
  5. Step 5: Solve for x
    x = 189,194,480,525.76/437,557.60
  6. Step 6: Final answer
    x = 432,387.60

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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.