Home / 724,041.80-999,177.68-401,803.72

Finding the Fourth Proportional to 724,041.80, 999,177.68 and 401,803.72

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Solution

The fourth proportional to 724,041.80, 999,177.68 and 401,803.72 is: 554,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,041.80 : 999,177.68 = 401,803.72 : x
  2. Step 2: Convert to fraction form
    724,041.80/999,177.68 = 401,803.72/x
  3. Step 3: Cross multiply
    724,041.80x = 999,177.68 × 401,803.72
  4. Step 4: Simplify right side
    724,041.80x = 401,473,308,764.97
  5. Step 5: Solve for x
    x = 401,473,308,764.97/724,041.80
  6. Step 6: Final answer
    x = 554,489.13

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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.