Home / 790,168.12-1,090,434.89-427,591.95

Finding the Fourth Proportional to 790,168.12, 1,090,434.89 and 427,591.95

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Solution

The fourth proportional to 790,168.12, 1,090,434.89 and 427,591.95 is: 590,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,168.12 : 1,090,434.89 = 427,591.95 : x
  2. Step 2: Convert to fraction form
    790,168.12/1,090,434.89 = 427,591.95/x
  3. Step 3: Cross multiply
    790,168.12x = 1,090,434.89 × 427,591.95
  4. Step 4: Simplify right side
    790,168.12x = 466,261,179,894.16
  5. Step 5: Solve for x
    x = 466,261,179,894.16/790,168.12
  6. Step 6: Final answer
    x = 590,078.45

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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.