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Finding the Fourth Proportional to 615,333.38, 849,202.65 and 343,454.18

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Solution

The fourth proportional to 615,333.38, 849,202.65 and 343,454.18 is: 473,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,333.38 : 849,202.65 = 343,454.18 : x
  2. Step 2: Convert to fraction form
    615,333.38/849,202.65 = 343,454.18/x
  3. Step 3: Cross multiply
    615,333.38x = 849,202.65 × 343,454.18
  4. Step 4: Simplify right side
    615,333.38x = 291,662,195,563.56
  5. Step 5: Solve for x
    x = 291,662,195,563.56/615,333.38
  6. Step 6: Final answer
    x = 473,990.53

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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.