Home / 1,992,487.89-2,986,838.15-778,842.58

Finding the Fourth Proportional to 1,992,487.89, 2,986,838.15 and 778,842.58

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Solution

The fourth proportional to 1,992,487.89, 2,986,838.15 and 778,842.58 is: 1,167,523.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,487.89 : 2,986,838.15 = 778,842.58 : x
  2. Step 2: Convert to fraction form
    1,992,487.89/2,986,838.15 = 778,842.58/x
  3. Step 3: Cross multiply
    1,992,487.89x = 2,986,838.15 × 778,842.58
  4. Step 4: Simplify right side
    1,992,487.89x = 2,326,276,722,347.78
  5. Step 5: Solve for x
    x = 2,326,276,722,347.78/1,992,487.89
  6. Step 6: Final answer
    x = 1,167,523.65

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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.