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Finding the Fourth Proportional to 578,765.60, 868,148.40 and 204,826.40

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Solution

The fourth proportional to 578,765.60, 868,148.40 and 204,826.40 is: 307,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,765.60 : 868,148.40 = 204,826.40 : x
  2. Step 2: Convert to fraction form
    578,765.60/868,148.40 = 204,826.40/x
  3. Step 3: Cross multiply
    578,765.60x = 868,148.40 × 204,826.40
  4. Step 4: Simplify right side
    578,765.60x = 177,819,711,437.76
  5. Step 5: Solve for x
    x = 177,819,711,437.76/578,765.60
  6. Step 6: Final answer
    x = 307,239.60

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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.