Home / 1,432,457.31-1,976,828.49-787,894.42

Finding the Fourth Proportional to 1,432,457.31, 1,976,828.49 and 787,894.42

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Solution

The fourth proportional to 1,432,457.31, 1,976,828.49 and 787,894.42 is: 1,087,314.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,457.31 : 1,976,828.49 = 787,894.42 : x
  2. Step 2: Convert to fraction form
    1,432,457.31/1,976,828.49 = 787,894.42/x
  3. Step 3: Cross multiply
    1,432,457.31x = 1,976,828.49 × 787,894.42
  4. Step 4: Simplify right side
    1,432,457.31x = 1,557,532,122,744.41
  5. Step 5: Solve for x
    x = 1,557,532,122,744.41/1,432,457.31
  6. Step 6: Final answer
    x = 1,087,314.86

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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.