Home / 1,114,815.10-1,672,222.65-778,891.90

Finding the Fourth Proportional to 1,114,815.10, 1,672,222.65 and 778,891.90

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Solution

The fourth proportional to 1,114,815.10, 1,672,222.65 and 778,891.90 is: 1,168,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,815.10 : 1,672,222.65 = 778,891.90 : x
  2. Step 2: Convert to fraction form
    1,114,815.10/1,672,222.65 = 778,891.90/x
  3. Step 3: Cross multiply
    1,114,815.10x = 1,672,222.65 × 778,891.90
  4. Step 4: Simplify right side
    1,114,815.10x = 1,302,480,677,081.53
  5. Step 5: Solve for x
    x = 1,302,480,677,081.53/1,114,815.10
  6. Step 6: Final answer
    x = 1,168,337.85

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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.