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Finding the Fourth Proportional to 530,576.33, 732,208.49 and 288,872.16

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Solution

The fourth proportional to 530,576.33, 732,208.49 and 288,872.16 is: 398,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,576.33 : 732,208.49 = 288,872.16 : x
  2. Step 2: Convert to fraction form
    530,576.33/732,208.49 = 288,872.16/x
  3. Step 3: Cross multiply
    530,576.33x = 732,208.49 × 288,872.16
  4. Step 4: Simplify right side
    530,576.33x = 211,514,646,632.28
  5. Step 5: Solve for x
    x = 211,514,646,632.28/530,576.33
  6. Step 6: Final answer
    x = 398,650.74

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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.