Home / 578,043.48-865,943.46-425,964.60

Finding the Fourth Proportional to 578,043.48, 865,943.46 and 425,964.60

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Solution

The fourth proportional to 578,043.48, 865,943.46 and 425,964.60 is: 638,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,043.48 : 865,943.46 = 425,964.60 : x
  2. Step 2: Convert to fraction form
    578,043.48/865,943.46 = 425,964.60/x
  3. Step 3: Cross multiply
    578,043.48x = 865,943.46 × 425,964.60
  4. Step 4: Simplify right side
    578,043.48x = 368,861,259,561.52
  5. Step 5: Solve for x
    x = 368,861,259,561.52/578,043.48
  6. Step 6: Final answer
    x = 638,120.27

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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.