Home / 781,705.68-1,077,279.51-626,480.65

Finding the Fourth Proportional to 781,705.68, 1,077,279.51 and 626,480.65

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Solution

The fourth proportional to 781,705.68, 1,077,279.51 and 626,480.65 is: 863,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,705.68 : 1,077,279.51 = 626,480.65 : x
  2. Step 2: Convert to fraction form
    781,705.68/1,077,279.51 = 626,480.65/x
  3. Step 3: Cross multiply
    781,705.68x = 1,077,279.51 × 626,480.65
  4. Step 4: Simplify right side
    781,705.68x = 674,894,767,656.48
  5. Step 5: Solve for x
    x = 674,894,767,656.48/781,705.68
  6. Step 6: Final answer
    x = 863,361.73

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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.