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Finding the Fourth Proportional to 615,700.74, 849,442.62 and 361,002.72

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Solution

The fourth proportional to 615,700.74, 849,442.62 and 361,002.72 is: 498,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,700.74 : 849,442.62 = 361,002.72 : x
  2. Step 2: Convert to fraction form
    615,700.74/849,442.62 = 361,002.72/x
  3. Step 3: Cross multiply
    615,700.74x = 849,442.62 × 361,002.72
  4. Step 4: Simplify right side
    615,700.74x = 306,651,096,303.93
  5. Step 5: Solve for x
    x = 306,651,096,303.93/615,700.74
  6. Step 6: Final answer
    x = 498,052.18

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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.