Home / 1,138,282.40-1,707,382.87-285,361.11

Finding the Fourth Proportional to 1,138,282.40, 1,707,382.87 and 285,361.11

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Solution

The fourth proportional to 1,138,282.40, 1,707,382.87 and 285,361.11 is: 428,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,282.40 : 1,707,382.87 = 285,361.11 : x
  2. Step 2: Convert to fraction form
    1,138,282.40/1,707,382.87 = 285,361.11/x
  3. Step 3: Cross multiply
    1,138,282.40x = 1,707,382.87 × 285,361.11
  4. Step 4: Simplify right side
    1,138,282.40x = 487,220,670,264.78
  5. Step 5: Solve for x
    x = 487,220,670,264.78/1,138,282.40
  6. Step 6: Final answer
    x = 428,031.45

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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.