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Finding the Fourth Proportional to 615,276.29, 848,979.77 and 343,343.53

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Solution

The fourth proportional to 615,276.29, 848,979.77 and 343,343.53 is: 473,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,276.29 : 848,979.77 = 343,343.53 : x
  2. Step 2: Convert to fraction form
    615,276.29/848,979.77 = 343,343.53/x
  3. Step 3: Cross multiply
    615,276.29x = 848,979.77 × 343,343.53
  4. Step 4: Simplify right side
    615,276.29x = 291,491,712,597.35
  5. Step 5: Solve for x
    x = 291,491,712,597.35/615,276.29
  6. Step 6: Final answer
    x = 473,757.43

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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.