Home / 465,434.62-698,138.02-128,495.84

Finding the Fourth Proportional to 465,434.62, 698,138.02 and 128,495.84

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Solution

The fourth proportional to 465,434.62, 698,138.02 and 128,495.84 is: 192,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,434.62 : 698,138.02 = 128,495.84 : x
  2. Step 2: Convert to fraction form
    465,434.62/698,138.02 = 128,495.84/x
  3. Step 3: Cross multiply
    465,434.62x = 698,138.02 × 128,495.84
  4. Step 4: Simplify right side
    465,434.62x = 89,707,827,503.91
  5. Step 5: Solve for x
    x = 89,707,827,503.91/465,434.62
  6. Step 6: Final answer
    x = 192,739.91

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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.