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Finding the Fourth Proportional to 615,057.62, 848,779.90 and 343,125.52

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Solution

The fourth proportional to 615,057.62, 848,779.90 and 343,125.52 is: 473,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,057.62 : 848,779.90 = 343,125.52 : x
  2. Step 2: Convert to fraction form
    615,057.62/848,779.90 = 343,125.52/x
  3. Step 3: Cross multiply
    615,057.62x = 848,779.90 × 343,125.52
  4. Step 4: Simplify right side
    615,057.62x = 291,238,044,553.05
  5. Step 5: Solve for x
    x = 291,238,044,553.05/615,057.62
  6. Step 6: Final answer
    x = 473,513.43

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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.