Home / 1,369,277.13-1,889,143.52-788,487.78

Finding the Fourth Proportional to 1,369,277.13, 1,889,143.52 and 788,487.78

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Solution

The fourth proportional to 1,369,277.13, 1,889,143.52 and 788,487.78 is: 1,087,848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,277.13 : 1,889,143.52 = 788,487.78 : x
  2. Step 2: Convert to fraction form
    1,369,277.13/1,889,143.52 = 788,487.78/x
  3. Step 3: Cross multiply
    1,369,277.13x = 1,889,143.52 × 788,487.78
  4. Step 4: Simplify right side
    1,369,277.13x = 1,489,566,585,545.66
  5. Step 5: Solve for x
    x = 1,489,566,585,545.66/1,369,277.13
  6. Step 6: Final answer
    x = 1,087,848.87

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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.