Home / 724,274.66-999,545.74-401,984.78

Finding the Fourth Proportional to 724,274.66, 999,545.74 and 401,984.78

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Solution

The fourth proportional to 724,274.66, 999,545.74 and 401,984.78 is: 554,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,274.66 : 999,545.74 = 401,984.78 : x
  2. Step 2: Convert to fraction form
    724,274.66/999,545.74 = 401,984.78/x
  3. Step 3: Cross multiply
    724,274.66x = 999,545.74 × 401,984.78
  4. Step 4: Simplify right side
    724,274.66x = 401,802,168,391.15
  5. Step 5: Solve for x
    x = 401,802,168,391.15/724,274.66
  6. Step 6: Final answer
    x = 554,764.91

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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.