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Finding the Fourth Proportional to 615,061.64, 848,785.41 and 343,129.52

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Solution

The fourth proportional to 615,061.64, 848,785.41 and 343,129.52 is: 473,518.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,061.64 : 848,785.41 = 343,129.52 : x
  2. Step 2: Convert to fraction form
    615,061.64/848,785.41 = 343,129.52/x
  3. Step 3: Cross multiply
    615,061.64x = 848,785.41 × 343,129.52
  4. Step 4: Simplify right side
    615,061.64x = 291,243,330,316.30
  5. Step 5: Solve for x
    x = 291,243,330,316.30/615,061.64
  6. Step 6: Final answer
    x = 473,518.93

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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.