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Finding the Fourth Proportional to 552,671.85, 762,632.71 and 310,949.09

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Solution

The fourth proportional to 552,671.85, 762,632.71 and 310,949.09 is: 429,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,671.85 : 762,632.71 = 310,949.09 : x
  2. Step 2: Convert to fraction form
    552,671.85/762,632.71 = 310,949.09/x
  3. Step 3: Cross multiply
    552,671.85x = 762,632.71 × 310,949.09
  4. Step 4: Simplify right side
    552,671.85x = 237,139,941,810.83
  5. Step 5: Solve for x
    x = 237,139,941,810.83/552,671.85
  6. Step 6: Final answer
    x = 429,079.10

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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.