Home / 781,715.54-1,077,293.13-626,490.51

Finding the Fourth Proportional to 781,715.54, 1,077,293.13 and 626,490.51

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Solution

The fourth proportional to 781,715.54, 1,077,293.13 and 626,490.51 is: 863,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,715.54 : 1,077,293.13 = 626,490.51 : x
  2. Step 2: Convert to fraction form
    781,715.54/1,077,293.13 = 626,490.51/x
  3. Step 3: Cross multiply
    781,715.54x = 1,077,293.13 × 626,490.51
  4. Step 4: Simplify right side
    781,715.54x = 674,913,922,433.20
  5. Step 5: Solve for x
    x = 674,913,922,433.20/781,715.54
  6. Step 6: Final answer
    x = 863,375.34

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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.