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Finding the Fourth Proportional to 615,005.28, 848,722.32 and 343,071.24

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Solution

The fourth proportional to 615,005.28, 848,722.32 and 343,071.24 is: 473,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,005.28 : 848,722.32 = 343,071.24 : x
  2. Step 2: Convert to fraction form
    615,005.28/848,722.32 = 343,071.24/x
  3. Step 3: Cross multiply
    615,005.28x = 848,722.32 × 343,071.24
  4. Step 4: Simplify right side
    615,005.28x = 291,172,218,738.08
  5. Step 5: Solve for x
    x = 291,172,218,738.08/615,005.28
  6. Step 6: Final answer
    x = 473,446.70

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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.