Home / 753,336.05-1,128,822.89-640,552.46

Finding the Fourth Proportional to 753,336.05, 1,128,822.89 and 640,552.46

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Solution

The fourth proportional to 753,336.05, 1,128,822.89 and 640,552.46 is: 959,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,336.05 : 1,128,822.89 = 640,552.46 : x
  2. Step 2: Convert to fraction form
    753,336.05/1,128,822.89 = 640,552.46/x
  3. Step 3: Cross multiply
    753,336.05x = 1,128,822.89 × 640,552.46
  4. Step 4: Simplify right side
    753,336.05x = 723,070,270,246.93
  5. Step 5: Solve for x
    x = 723,070,270,246.93/753,336.05
  6. Step 6: Final answer
    x = 959,824.34

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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.