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Finding the Fourth Proportional to 580,565.20, 870,847.80 and 438,847.60

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Solution

The fourth proportional to 580,565.20, 870,847.80 and 438,847.60 is: 658,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,565.20 : 870,847.80 = 438,847.60 : x
  2. Step 2: Convert to fraction form
    580,565.20/870,847.80 = 438,847.60/x
  3. Step 3: Cross multiply
    580,565.20x = 870,847.80 × 438,847.60
  4. Step 4: Simplify right side
    580,565.20x = 382,169,466,995.28
  5. Step 5: Solve for x
    x = 382,169,466,995.28/580,565.20
  6. Step 6: Final answer
    x = 658,271.40

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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.