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Finding the Fourth Proportional to 574,880.40, 862,320.60 and 219,711.60

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Solution

The fourth proportional to 574,880.40, 862,320.60 and 219,711.60 is: 329,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,880.40 : 862,320.60 = 219,711.60 : x
  2. Step 2: Convert to fraction form
    574,880.40/862,320.60 = 219,711.60/x
  3. Step 3: Cross multiply
    574,880.40x = 862,320.60 × 219,711.60
  4. Step 4: Simplify right side
    574,880.40x = 189,461,838,738.96
  5. Step 5: Solve for x
    x = 189,461,838,738.96/574,880.40
  6. Step 6: Final answer
    x = 329,567.40

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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.