Home / 1,288,888.56-1,778,665.50-715,982.04

Finding the Fourth Proportional to 1,288,888.56, 1,778,665.50 and 715,982.04

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Solution

The fourth proportional to 1,288,888.56, 1,778,665.50 and 715,982.04 is: 988,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,888.56 : 1,778,665.50 = 715,982.04 : x
  2. Step 2: Convert to fraction form
    1,288,888.56/1,778,665.50 = 715,982.04/x
  3. Step 3: Cross multiply
    1,288,888.56x = 1,778,665.50 × 715,982.04
  4. Step 4: Simplify right side
    1,288,888.56x = 1,273,492,553,167.62
  5. Step 5: Solve for x
    x = 1,273,492,553,167.62/1,288,888.56
  6. Step 6: Final answer
    x = 988,054.82

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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.