Home / 653,844.24-902,707.61-518,425.20

Finding the Fourth Proportional to 653,844.24, 902,707.61 and 518,425.20

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Solution

The fourth proportional to 653,844.24, 902,707.61 and 518,425.20 is: 715,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,844.24 : 902,707.61 = 518,425.20 : x
  2. Step 2: Convert to fraction form
    653,844.24/902,707.61 = 518,425.20/x
  3. Step 3: Cross multiply
    653,844.24x = 902,707.61 × 518,425.20
  4. Step 4: Simplify right side
    653,844.24x = 467,986,370,663.65
  5. Step 5: Solve for x
    x = 467,986,370,663.65/653,844.24
  6. Step 6: Final answer
    x = 715,745.96

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Double scale
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1.5x scale

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.