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Finding the Fourth Proportional to 587,060.20, 880,007.10 and 287,295.40

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Solution

The fourth proportional to 587,060.20, 880,007.10 and 287,295.40 is: 430,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,060.20 : 880,007.10 = 287,295.40 : x
  2. Step 2: Convert to fraction form
    587,060.20/880,007.10 = 287,295.40/x
  3. Step 3: Cross multiply
    587,060.20x = 880,007.10 × 287,295.40
  4. Step 4: Simplify right side
    587,060.20x = 252,821,991,797.34
  5. Step 5: Solve for x
    x = 252,821,991,797.34/587,060.20
  6. Step 6: Final answer
    x = 430,657.69

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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.