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Finding the Fourth Proportional to 681,430.29, 940,360.87 and 375,534.93

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Solution

The fourth proportional to 681,430.29, 940,360.87 and 375,534.93 is: 518,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,430.29 : 940,360.87 = 375,534.93 : x
  2. Step 2: Convert to fraction form
    681,430.29/940,360.87 = 375,534.93/x
  3. Step 3: Cross multiply
    681,430.29x = 940,360.87 × 375,534.93
  4. Step 4: Simplify right side
    681,430.29x = 353,138,353,490.19
  5. Step 5: Solve for x
    x = 353,138,353,490.19/681,430.29
  6. Step 6: Final answer
    x = 518,231.08

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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.