Home / 724,279.66-999,629.64-418,301.06

Finding the Fourth Proportional to 724,279.66, 999,629.64 and 418,301.06

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Solution

The fourth proportional to 724,279.66, 999,629.64 and 418,301.06 is: 577,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,279.66 : 999,629.64 = 418,301.06 : x
  2. Step 2: Convert to fraction form
    724,279.66/999,629.64 = 418,301.06/x
  3. Step 3: Cross multiply
    724,279.66x = 999,629.64 × 418,301.06
  4. Step 4: Simplify right side
    724,279.66x = 418,146,133,021.27
  5. Step 5: Solve for x
    x = 418,146,133,021.27/724,279.66
  6. Step 6: Final answer
    x = 577,326.91

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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.