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Finding the Fourth Proportional to 615,811.16, 849,823.52 and 343,882.28

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Solution

The fourth proportional to 615,811.16, 849,823.52 and 343,882.28 is: 474,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,811.16 : 849,823.52 = 343,882.28 : x
  2. Step 2: Convert to fraction form
    615,811.16/849,823.52 = 343,882.28/x
  3. Step 3: Cross multiply
    615,811.16x = 849,823.52 × 343,882.28
  4. Step 4: Simplify right side
    615,811.16x = 292,239,243,686.70
  5. Step 5: Solve for x
    x = 292,239,243,686.70/615,811.16
  6. Step 6: Final answer
    x = 474,559.84

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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.