Home / 1,121,987.28-1,683,474.12-589,384.56

Finding the Fourth Proportional to 1,121,987.28, 1,683,474.12 and 589,384.56

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Solution

The fourth proportional to 1,121,987.28, 1,683,474.12 and 589,384.56 is: 884,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,987.28 : 1,683,474.12 = 589,384.56 : x
  2. Step 2: Convert to fraction form
    1,121,987.28/1,683,474.12 = 589,384.56/x
  3. Step 3: Cross multiply
    1,121,987.28x = 1,683,474.12 × 589,384.56
  4. Step 4: Simplify right side
    1,121,987.28x = 992,213,653,487.59
  5. Step 5: Solve for x
    x = 992,213,653,487.59/1,121,987.28
  6. Step 6: Final answer
    x = 884,335.92

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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.