Home / 1,432,518.87-1,976,834.36-787,938.89

Finding the Fourth Proportional to 1,432,518.87, 1,976,834.36 and 787,938.89

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Solution

The fourth proportional to 1,432,518.87, 1,976,834.36 and 787,938.89 is: 1,087,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,518.87 : 1,976,834.36 = 787,938.89 : x
  2. Step 2: Convert to fraction form
    1,432,518.87/1,976,834.36 = 787,938.89/x
  3. Step 3: Cross multiply
    1,432,518.87x = 1,976,834.36 × 787,938.89
  4. Step 4: Simplify right side
    1,432,518.87x = 1,557,624,667,392.57
  5. Step 5: Solve for x
    x = 1,557,624,667,392.57/1,432,518.87
  6. Step 6: Final answer
    x = 1,087,332.74

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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.