Home / 724,036.87-999,177.78-401,776.96

Finding the Fourth Proportional to 724,036.87, 999,177.78 and 401,776.96

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Solution

The fourth proportional to 724,036.87, 999,177.78 and 401,776.96 is: 554,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,036.87 : 999,177.78 = 401,776.96 : x
  2. Step 2: Convert to fraction form
    724,036.87/999,177.78 = 401,776.96/x
  3. Step 3: Cross multiply
    724,036.87x = 999,177.78 × 401,776.96
  4. Step 4: Simplify right side
    724,036.87x = 401,446,610,947.95
  5. Step 5: Solve for x
    x = 401,446,610,947.95/724,036.87
  6. Step 6: Final answer
    x = 554,456.03

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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.