Home / 1,258,828.11-1,889,888.28-747,426.72

Finding the Fourth Proportional to 1,258,828.11, 1,889,888.28 and 747,426.72

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Solution

The fourth proportional to 1,258,828.11, 1,889,888.28 and 747,426.72 is: 1,122,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,828.11 : 1,889,888.28 = 747,426.72 : x
  2. Step 2: Convert to fraction form
    1,258,828.11/1,889,888.28 = 747,426.72/x
  3. Step 3: Cross multiply
    1,258,828.11x = 1,889,888.28 × 747,426.72
  4. Step 4: Simplify right side
    1,258,828.11x = 1,412,552,998,286.84
  5. Step 5: Solve for x
    x = 1,412,552,998,286.84/1,258,828.11
  6. Step 6: Final answer
    x = 1,122,117.46

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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.