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Finding the Fourth Proportional to 615,439.68, 849,272.22 and 343,525.11

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Solution

The fourth proportional to 615,439.68, 849,272.22 and 343,525.11 is: 474,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,439.68 : 849,272.22 = 343,525.11 : x
  2. Step 2: Convert to fraction form
    615,439.68/849,272.22 = 343,525.11/x
  3. Step 3: Cross multiply
    615,439.68x = 849,272.22 × 343,525.11
  4. Step 4: Simplify right side
    615,439.68x = 291,746,332,795.44
  5. Step 5: Solve for x
    x = 291,746,332,795.44/615,439.68
  6. Step 6: Final answer
    x = 474,045.37

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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.