Home / 724,041.48-999,177.20-401,803.42

Finding the Fourth Proportional to 724,041.48, 999,177.20 and 401,803.42

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Solution

The fourth proportional to 724,041.48, 999,177.20 and 401,803.42 is: 554,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,041.48 : 999,177.20 = 401,803.42 : x
  2. Step 2: Convert to fraction form
    724,041.48/999,177.20 = 401,803.42/x
  3. Step 3: Cross multiply
    724,041.48x = 999,177.20 × 401,803.42
  4. Step 4: Simplify right side
    724,041.48x = 401,472,816,146.02
  5. Step 5: Solve for x
    x = 401,472,816,146.02/724,041.48
  6. Step 6: Final answer
    x = 554,488.70

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1.5x scale

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.