Home / 1,432,475.80-1,976,817.61-787,945.03

Finding the Fourth Proportional to 1,432,475.80, 1,976,817.61 and 787,945.03

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Solution

The fourth proportional to 1,432,475.80, 1,976,817.61 and 787,945.03 is: 1,087,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,475.80 : 1,976,817.61 = 787,945.03 : x
  2. Step 2: Convert to fraction form
    1,432,475.80/1,976,817.61 = 787,945.03/x
  3. Step 3: Cross multiply
    1,432,475.80x = 1,976,817.61 × 787,945.03
  4. Step 4: Simplify right side
    1,432,475.80x = 1,557,623,607,058.87
  5. Step 5: Solve for x
    x = 1,557,623,607,058.87/1,432,475.80
  6. Step 6: Final answer
    x = 1,087,364.69

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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.