Home / 917,147.60-1,375,721.40-693,198.80

Finding the Fourth Proportional to 917,147.60, 1,375,721.40 and 693,198.80

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Solution

The fourth proportional to 917,147.60, 1,375,721.40 and 693,198.80 is: 1,039,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,147.60 : 1,375,721.40 = 693,198.80 : x
  2. Step 2: Convert to fraction form
    917,147.60/1,375,721.40 = 693,198.80/x
  3. Step 3: Cross multiply
    917,147.60x = 1,375,721.40 × 693,198.80
  4. Step 4: Simplify right side
    917,147.60x = 953,648,423,614.32
  5. Step 5: Solve for x
    x = 953,648,423,614.32/917,147.60
  6. Step 6: Final answer
    x = 1,039,798.20

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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.