Home / 781,706.68-1,077,280.89-626,481.65

Finding the Fourth Proportional to 781,706.68, 1,077,280.89 and 626,481.65

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Solution

The fourth proportional to 781,706.68, 1,077,280.89 and 626,481.65 is: 863,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,706.68 : 1,077,280.89 = 626,481.65 : x
  2. Step 2: Convert to fraction form
    781,706.68/1,077,280.89 = 626,481.65/x
  3. Step 3: Cross multiply
    781,706.68x = 1,077,280.89 × 626,481.65
  4. Step 4: Simplify right side
    781,706.68x = 674,896,709,480.67
  5. Step 5: Solve for x
    x = 674,896,709,480.67/781,706.68
  6. Step 6: Final answer
    x = 863,363.11

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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.