Home / 1,229,423.60-1,844,135.40-388,060.40

Finding the Fourth Proportional to 1,229,423.60, 1,844,135.40 and 388,060.40

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Solution

The fourth proportional to 1,229,423.60, 1,844,135.40 and 388,060.40 is: 582,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,423.60 : 1,844,135.40 = 388,060.40 : x
  2. Step 2: Convert to fraction form
    1,229,423.60/1,844,135.40 = 388,060.40/x
  3. Step 3: Cross multiply
    1,229,423.60x = 1,844,135.40 × 388,060.40
  4. Step 4: Simplify right side
    1,229,423.60x = 715,635,920,978.16
  5. Step 5: Solve for x
    x = 715,635,920,978.16/1,229,423.60
  6. Step 6: Final answer
    x = 582,090.60

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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.