Home / 498,723.40-687,999.18-362,546.20

Finding the Fourth Proportional to 498,723.40, 687,999.18 and 362,546.20

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Solution

The fourth proportional to 498,723.40, 687,999.18 and 362,546.20 is: 500,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,723.40 : 687,999.18 = 362,546.20 : x
  2. Step 2: Convert to fraction form
    498,723.40/687,999.18 = 362,546.20/x
  3. Step 3: Cross multiply
    498,723.40x = 687,999.18 × 362,546.20
  4. Step 4: Simplify right side
    498,723.40x = 249,431,488,312.12
  5. Step 5: Solve for x
    x = 249,431,488,312.12/498,723.40
  6. Step 6: Final answer
    x = 500,139.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.