Home / 722,865.38-997,576.09-400,545.32

Finding the Fourth Proportional to 722,865.38, 997,576.09 and 400,545.32

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Solution

The fourth proportional to 722,865.38, 997,576.09 and 400,545.32 is: 552,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,865.38 : 997,576.09 = 400,545.32 : x
  2. Step 2: Convert to fraction form
    722,865.38/997,576.09 = 400,545.32/x
  3. Step 3: Cross multiply
    722,865.38x = 997,576.09 × 400,545.32
  4. Step 4: Simplify right side
    722,865.38x = 399,574,428,204.16
  5. Step 5: Solve for x
    x = 399,574,428,204.16/722,865.38
  6. Step 6: Final answer
    x = 552,764.65

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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.