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Finding the Fourth Proportional to 615,059.12, 848,781.96 and 343,127.03

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Solution

The fourth proportional to 615,059.12, 848,781.96 and 343,127.03 is: 473,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,059.12 : 848,781.96 = 343,127.03 : x
  2. Step 2: Convert to fraction form
    615,059.12/848,781.96 = 343,127.03/x
  3. Step 3: Cross multiply
    615,059.12x = 848,781.96 × 343,127.03
  4. Step 4: Simplify right side
    615,059.12x = 291,240,027,521.74
  5. Step 5: Solve for x
    x = 291,240,027,521.74/615,059.12
  6. Step 6: Final answer
    x = 473,515.50

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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.