Home / 724,576.17-999,868.86-402,286.19

Finding the Fourth Proportional to 724,576.17, 999,868.86 and 402,286.19

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Solution

The fourth proportional to 724,576.17, 999,868.86 and 402,286.19 is: 555,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,576.17 : 999,868.86 = 402,286.19 : x
  2. Step 2: Convert to fraction form
    724,576.17/999,868.86 = 402,286.19/x
  3. Step 3: Cross multiply
    724,576.17x = 999,868.86 × 402,286.19
  4. Step 4: Simplify right side
    724,576.17x = 402,233,429,189.70
  5. Step 5: Solve for x
    x = 402,233,429,189.70/724,576.17
  6. Step 6: Final answer
    x = 555,129.25

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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.