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Finding the Fourth Proportional to 660,698.20, 991,047.30 and 585,902.80

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Solution

The fourth proportional to 660,698.20, 991,047.30 and 585,902.80 is: 878,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,698.20 : 991,047.30 = 585,902.80 : x
  2. Step 2: Convert to fraction form
    660,698.20/991,047.30 = 585,902.80/x
  3. Step 3: Cross multiply
    660,698.20x = 991,047.30 × 585,902.80
  4. Step 4: Simplify right side
    660,698.20x = 580,657,388,002.44
  5. Step 5: Solve for x
    x = 580,657,388,002.44/660,698.20
  6. Step 6: Final answer
    x = 878,854.20

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Similar ratio
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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.