Home / 1,278,300.13-1,764,091.15-705,377.21

Finding the Fourth Proportional to 1,278,300.13, 1,764,091.15 and 705,377.21

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Solution

The fourth proportional to 1,278,300.13, 1,764,091.15 and 705,377.21 is: 973,440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,300.13 : 1,764,091.15 = 705,377.21 : x
  2. Step 2: Convert to fraction form
    1,278,300.13/1,764,091.15 = 705,377.21/x
  3. Step 3: Cross multiply
    1,278,300.13x = 1,764,091.15 × 705,377.21
  4. Step 4: Simplify right side
    1,278,300.13x = 1,244,349,696,879.55
  5. Step 5: Solve for x
    x = 1,244,349,696,879.55/1,278,300.13
  6. Step 6: Final answer
    x = 973,440.95

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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.