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Finding the Fourth Proportional to 503,248.73, 694,502.36 and 288,430.25

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Solution

The fourth proportional to 503,248.73, 694,502.36 and 288,430.25 is: 398,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,248.73 : 694,502.36 = 288,430.25 : x
  2. Step 2: Convert to fraction form
    503,248.73/694,502.36 = 288,430.25/x
  3. Step 3: Cross multiply
    503,248.73x = 694,502.36 × 288,430.25
  4. Step 4: Simplify right side
    503,248.73x = 200,315,484,405.73
  5. Step 5: Solve for x
    x = 200,315,484,405.73/503,248.73
  6. Step 6: Final answer
    x = 398,044.69

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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.