Home / 778,862.15-1,091,981.65-778,862.15

Finding the Fourth Proportional to 778,862.15, 1,091,981.65 and 778,862.15

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Solution

The fourth proportional to 778,862.15, 1,091,981.65 and 778,862.15 is: 1,091,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,862.15 : 1,091,981.65 = 778,862.15 : x
  2. Step 2: Convert to fraction form
    778,862.15/1,091,981.65 = 778,862.15/x
  3. Step 3: Cross multiply
    778,862.15x = 1,091,981.65 × 778,862.15
  4. Step 4: Simplify right side
    778,862.15x = 850,503,175,679.55
  5. Step 5: Solve for x
    x = 850,503,175,679.55/778,862.15
  6. Step 6: Final answer
    x = 1,091,981.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.