Home / 681,421.74-940,403.16-375,497.60

Finding the Fourth Proportional to 681,421.74, 940,403.16 and 375,497.60

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Solution

The fourth proportional to 681,421.74, 940,403.16 and 375,497.60 is: 518,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,421.74 : 940,403.16 = 375,497.60 : x
  2. Step 2: Convert to fraction form
    681,421.74/940,403.16 = 375,497.60/x
  3. Step 3: Cross multiply
    681,421.74x = 940,403.16 × 375,497.60
  4. Step 4: Simplify right side
    681,421.74x = 353,119,129,612.42
  5. Step 5: Solve for x
    x = 353,119,129,612.42/681,421.74
  6. Step 6: Final answer
    x = 518,209.37

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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.