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Finding the Fourth Proportional to 1,252,591.95, 1,878,865.93 and 867,986.13

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Solution

The fourth proportional to 1,252,591.95, 1,878,865.93 and 867,986.13 is: 1,301,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,591.95 : 1,878,865.93 = 867,986.13 : x
  2. Step 2: Convert to fraction form
    1,252,591.95/1,878,865.93 = 867,986.13/x
  3. Step 3: Cross multiply
    1,252,591.95x = 1,878,865.93 × 867,986.13
  4. Step 4: Simplify right side
    1,252,591.95x = 1,630,829,567,369.55
  5. Step 5: Solve for x
    x = 1,630,829,567,369.55/1,252,591.95
  6. Step 6: Final answer
    x = 1,301,963.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.