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Finding the Fourth Proportional to 615,301.20, 849,117.56 and 343,380.60

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Solution

The fourth proportional to 615,301.20, 849,117.56 and 343,380.60 is: 473,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,301.20 : 849,117.56 = 343,380.60 : x
  2. Step 2: Convert to fraction form
    615,301.20/849,117.56 = 343,380.60/x
  3. Step 3: Cross multiply
    615,301.20x = 849,117.56 × 343,380.60
  4. Step 4: Simplify right side
    615,301.20x = 291,570,497,223.34
  5. Step 5: Solve for x
    x = 291,570,497,223.34/615,301.20
  6. Step 6: Final answer
    x = 473,866.29

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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.