Home / 498,768.48-748,038.72-199,168.65

Finding the Fourth Proportional to 498,768.48, 748,038.72 and 199,168.65

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Solution

The fourth proportional to 498,768.48, 748,038.72 and 199,168.65 is: 298,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,768.48 : 748,038.72 = 199,168.65 : x
  2. Step 2: Convert to fraction form
    498,768.48/748,038.72 = 199,168.65/x
  3. Step 3: Cross multiply
    498,768.48x = 748,038.72 × 199,168.65
  4. Step 4: Simplify right side
    498,768.48x = 148,985,862,010.13
  5. Step 5: Solve for x
    x = 148,985,862,010.13/498,768.48
  6. Step 6: Final answer
    x = 298,707.45

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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.