Home / 423,780.12-635,534.10-187,117.56

Finding the Fourth Proportional to 423,780.12, 635,534.10 and 187,117.56

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Solution

The fourth proportional to 423,780.12, 635,534.10 and 187,117.56 is: 280,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,780.12 : 635,534.10 = 187,117.56 : x
  2. Step 2: Convert to fraction form
    423,780.12/635,534.10 = 187,117.56/x
  3. Step 3: Cross multiply
    423,780.12x = 635,534.10 × 187,117.56
  4. Step 4: Simplify right side
    423,780.12x = 118,919,590,088.80
  5. Step 5: Solve for x
    x = 118,919,590,088.80/423,780.12
  6. Step 6: Final answer
    x = 280,616.25

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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.