Home / 725,325.28-1,088,172.45-426,058.93

Finding the Fourth Proportional to 725,325.28, 1,088,172.45 and 426,058.93

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Solution

The fourth proportional to 725,325.28, 1,088,172.45 and 426,058.93 is: 639,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,325.28 : 1,088,172.45 = 426,058.93 : x
  2. Step 2: Convert to fraction form
    725,325.28/1,088,172.45 = 426,058.93/x
  3. Step 3: Cross multiply
    725,325.28x = 1,088,172.45 × 426,058.93
  4. Step 4: Simplify right side
    725,325.28x = 463,625,589,702.48
  5. Step 5: Solve for x
    x = 463,625,589,702.48/725,325.28
  6. Step 6: Final answer
    x = 639,196.79

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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.