Home / 662,060.16-991,837.26-391,377.90

Finding the Fourth Proportional to 662,060.16, 991,837.26 and 391,377.90

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Solution

The fourth proportional to 662,060.16, 991,837.26 and 391,377.90 is: 586,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,060.16 : 991,837.26 = 391,377.90 : x
  2. Step 2: Convert to fraction form
    662,060.16/991,837.26 = 391,377.90/x
  3. Step 3: Cross multiply
    662,060.16x = 991,837.26 × 391,377.90
  4. Step 4: Simplify right side
    662,060.16x = 388,183,183,960.55
  5. Step 5: Solve for x
    x = 388,183,183,960.55/662,060.16
  6. Step 6: Final answer
    x = 586,326.15

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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.