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Finding the Fourth Proportional to 473,645.43, 653,640.12 and 258,798.78

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Solution

The fourth proportional to 473,645.43, 653,640.12 and 258,798.78 is: 357,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,645.43 : 653,640.12 = 258,798.78 : x
  2. Step 2: Convert to fraction form
    473,645.43/653,640.12 = 258,798.78/x
  3. Step 3: Cross multiply
    473,645.43x = 653,640.12 × 258,798.78
  4. Step 4: Simplify right side
    473,645.43x = 169,161,265,615.05
  5. Step 5: Solve for x
    x = 169,161,265,615.05/473,645.43
  6. Step 6: Final answer
    x = 357,147.47

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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.