Home / 578,079.08-865,996.44-426,000.12

Finding the Fourth Proportional to 578,079.08, 865,996.44 and 426,000.12

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Solution

The fourth proportional to 578,079.08, 865,996.44 and 426,000.12 is: 638,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,079.08 : 865,996.44 = 426,000.12 : x
  2. Step 2: Convert to fraction form
    578,079.08/865,996.44 = 426,000.12/x
  3. Step 3: Cross multiply
    578,079.08x = 865,996.44 × 426,000.12
  4. Step 4: Simplify right side
    578,079.08x = 368,914,587,359.57
  5. Step 5: Solve for x
    x = 368,914,587,359.57/578,079.08
  6. Step 6: Final answer
    x = 638,173.22

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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.