Home / 1,380,981.50-2,070,143.64-707,380.04

Finding the Fourth Proportional to 1,380,981.50, 2,070,143.64 and 707,380.04

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Solution

The fourth proportional to 1,380,981.50, 2,070,143.64 and 707,380.04 is: 1,060,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,981.50 : 2,070,143.64 = 707,380.04 : x
  2. Step 2: Convert to fraction form
    1,380,981.50/2,070,143.64 = 707,380.04/x
  3. Step 3: Cross multiply
    1,380,981.50x = 2,070,143.64 × 707,380.04
  4. Step 4: Simplify right side
    1,380,981.50x = 1,464,378,290,868.95
  5. Step 5: Solve for x
    x = 1,464,378,290,868.95/1,380,981.50
  6. Step 6: Final answer
    x = 1,060,389.51

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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.