Home / 724,197.84-999,363.40-401,921.36

Finding the Fourth Proportional to 724,197.84, 999,363.40 and 401,921.36

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Solution

The fourth proportional to 724,197.84, 999,363.40 and 401,921.36 is: 554,635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,197.84 : 999,363.40 = 401,921.36 : x
  2. Step 2: Convert to fraction form
    724,197.84/999,363.40 = 401,921.36/x
  3. Step 3: Cross multiply
    724,197.84x = 999,363.40 × 401,921.36
  4. Step 4: Simplify right side
    724,197.84x = 401,665,496,862.22
  5. Step 5: Solve for x
    x = 401,665,496,862.22/724,197.84
  6. Step 6: Final answer
    x = 554,635.04

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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.