Home / 767,251.63-1,151,587.28-388,438.53

Finding the Fourth Proportional to 767,251.63, 1,151,587.28 and 388,438.53

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Solution

The fourth proportional to 767,251.63, 1,151,587.28 and 388,438.53 is: 583,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,251.63 : 1,151,587.28 = 388,438.53 : x
  2. Step 2: Convert to fraction form
    767,251.63/1,151,587.28 = 388,438.53/x
  3. Step 3: Cross multiply
    767,251.63x = 1,151,587.28 × 388,438.53
  4. Step 4: Simplify right side
    767,251.63x = 447,320,870,209.90
  5. Step 5: Solve for x
    x = 447,320,870,209.90/767,251.63
  6. Step 6: Final answer
    x = 583,017.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.