Home / 1,282,876.25-1,924,677.65-642,406.82

Finding the Fourth Proportional to 1,282,876.25, 1,924,677.65 and 642,406.82

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Solution

The fourth proportional to 1,282,876.25, 1,924,677.65 and 642,406.82 is: 963,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,876.25 : 1,924,677.65 = 642,406.82 : x
  2. Step 2: Convert to fraction form
    1,282,876.25/1,924,677.65 = 642,406.82/x
  3. Step 3: Cross multiply
    1,282,876.25x = 1,924,677.65 × 642,406.82
  4. Step 4: Simplify right side
    1,282,876.25x = 1,236,426,040,644.20
  5. Step 5: Solve for x
    x = 1,236,426,040,644.20/1,282,876.25
  6. Step 6: Final answer
    x = 963,792.14

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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.