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Finding the Fourth Proportional to 695,881.40, 960,300.06 and 409,419.92

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Solution

The fourth proportional to 695,881.40, 960,300.06 and 409,419.92 is: 564,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,881.40 : 960,300.06 = 409,419.92 : x
  2. Step 2: Convert to fraction form
    695,881.40/960,300.06 = 409,419.92/x
  3. Step 3: Cross multiply
    695,881.40x = 960,300.06 × 409,419.92
  4. Step 4: Simplify right side
    695,881.40x = 393,165,973,741.20
  5. Step 5: Solve for x
    x = 393,165,973,741.20/695,881.40
  6. Step 6: Final answer
    x = 564,989.92

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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.