Home / 725,964.72-1,001,848.68-403,688.40

Finding the Fourth Proportional to 725,964.72, 1,001,848.68 and 403,688.40

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Solution

The fourth proportional to 725,964.72, 1,001,848.68 and 403,688.40 is: 557,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,964.72 : 1,001,848.68 = 403,688.40 : x
  2. Step 2: Convert to fraction form
    725,964.72/1,001,848.68 = 403,688.40/x
  3. Step 3: Cross multiply
    725,964.72x = 1,001,848.68 × 403,688.40
  4. Step 4: Simplify right side
    725,964.72x = 404,434,690,671.31
  5. Step 5: Solve for x
    x = 404,434,690,671.31/725,964.72
  6. Step 6: Final answer
    x = 557,099.65

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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.