Home / 1,432,389.84-1,976,687.65-787,796.20

Finding the Fourth Proportional to 1,432,389.84, 1,976,687.65 and 787,796.20

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Solution

The fourth proportional to 1,432,389.84, 1,976,687.65 and 787,796.20 is: 1,087,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,389.84 : 1,976,687.65 = 787,796.20 : x
  2. Step 2: Convert to fraction form
    1,432,389.84/1,976,687.65 = 787,796.20/x
  3. Step 3: Cross multiply
    1,432,389.84x = 1,976,687.65 × 787,796.20
  4. Step 4: Simplify right side
    1,432,389.84x = 1,557,227,012,345.72
  5. Step 5: Solve for x
    x = 1,557,227,012,345.72/1,432,389.84
  6. Step 6: Final answer
    x = 1,087,153.07

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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.