Home / 1,432,457.18-1,976,828.31-787,894.29

Finding the Fourth Proportional to 1,432,457.18, 1,976,828.31 and 787,894.29

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Solution

The fourth proportional to 1,432,457.18, 1,976,828.31 and 787,894.29 is: 1,087,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,457.18 : 1,976,828.31 = 787,894.29 : x
  2. Step 2: Convert to fraction form
    1,432,457.18/1,976,828.31 = 787,894.29/x
  3. Step 3: Cross multiply
    1,432,457.18x = 1,976,828.31 × 787,894.29
  4. Step 4: Simplify right side
    1,432,457.18x = 1,557,531,737,759.35
  5. Step 5: Solve for x
    x = 1,557,531,737,759.35/1,432,457.18
  6. Step 6: Final answer
    x = 1,087,314.69

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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.