Home / 860,440.30-1,188,621.84-689,493.85

Finding the Fourth Proportional to 860,440.30, 1,188,621.84 and 689,493.85

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Solution

The fourth proportional to 860,440.30, 1,188,621.84 and 689,493.85 is: 952,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,440.30 : 1,188,621.84 = 689,493.85 : x
  2. Step 2: Convert to fraction form
    860,440.30/1,188,621.84 = 689,493.85/x
  3. Step 3: Cross multiply
    860,440.30x = 1,188,621.84 × 689,493.85
  4. Step 4: Simplify right side
    860,440.30x = 819,547,450,141.46
  5. Step 5: Solve for x
    x = 819,547,450,141.46/860,440.30
  6. Step 6: Final answer
    x = 952,474.51

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1.5x scale

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.