Home / 860,145.10-1,290,217.65-707,929.90

Finding the Fourth Proportional to 860,145.10, 1,290,217.65 and 707,929.90

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Solution

The fourth proportional to 860,145.10, 1,290,217.65 and 707,929.90 is: 1,061,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,145.10 : 1,290,217.65 = 707,929.90 : x
  2. Step 2: Convert to fraction form
    860,145.10/1,290,217.65 = 707,929.90/x
  3. Step 3: Cross multiply
    860,145.10x = 1,290,217.65 × 707,929.90
  4. Step 4: Simplify right side
    860,145.10x = 913,383,651,942.74
  5. Step 5: Solve for x
    x = 913,383,651,942.74/860,145.10
  6. Step 6: Final answer
    x = 1,061,894.85

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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.