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Finding the Fourth Proportional to 587,364.20, 881,046.30 and 385,285.40

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Solution

The fourth proportional to 587,364.20, 881,046.30 and 385,285.40 is: 577,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,364.20 : 881,046.30 = 385,285.40 : x
  2. Step 2: Convert to fraction form
    587,364.20/881,046.30 = 385,285.40/x
  3. Step 3: Cross multiply
    587,364.20x = 881,046.30 × 385,285.40
  4. Step 4: Simplify right side
    587,364.20x = 339,454,276,114.02
  5. Step 5: Solve for x
    x = 339,454,276,114.02/587,364.20
  6. Step 6: Final answer
    x = 577,928.10

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Similar ratio
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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.