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Finding the Fourth Proportional to 615,868.52, 849,850.06 and 343,915.16

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Solution

The fourth proportional to 615,868.52, 849,850.06 and 343,915.16 is: 474,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,868.52 : 849,850.06 = 343,915.16 : x
  2. Step 2: Convert to fraction form
    615,868.52/849,850.06 = 343,915.16/x
  3. Step 3: Cross multiply
    615,868.52x = 849,850.06 × 343,915.16
  4. Step 4: Simplify right side
    615,868.52x = 292,276,319,360.91
  5. Step 5: Solve for x
    x = 292,276,319,360.91/615,868.52
  6. Step 6: Final answer
    x = 474,575.84

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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.