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Finding the Fourth Proportional to 681,522.68, 940,507.65 and 375,609.98

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Solution

The fourth proportional to 681,522.68, 940,507.65 and 375,609.98 is: 518,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,522.68 : 940,507.65 = 375,609.98 : x
  2. Step 2: Convert to fraction form
    681,522.68/940,507.65 = 375,609.98/x
  3. Step 3: Cross multiply
    681,522.68x = 940,507.65 × 375,609.98
  4. Step 4: Simplify right side
    681,522.68x = 353,264,054,903.81
  5. Step 5: Solve for x
    x = 353,264,054,903.81/681,522.68
  6. Step 6: Final answer
    x = 518,345.27

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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.