Home / 726,017.61-1,001,906.29-399,364.07

Finding the Fourth Proportional to 726,017.61, 1,001,906.29 and 399,364.07

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Solution

The fourth proportional to 726,017.61, 1,001,906.29 and 399,364.07 is: 551,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,017.61 : 1,001,906.29 = 399,364.07 : x
  2. Step 2: Convert to fraction form
    726,017.61/1,001,906.29 = 399,364.07/x
  3. Step 3: Cross multiply
    726,017.61x = 1,001,906.29 × 399,364.07
  4. Step 4: Simplify right side
    726,017.61x = 400,125,373,735.19
  5. Step 5: Solve for x
    x = 400,125,373,735.19/726,017.61
  6. Step 6: Final answer
    x = 551,123.51

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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.