Home / 907,640.66-1,252,533.78-499,734.18

Finding the Fourth Proportional to 907,640.66, 1,252,533.78 and 499,734.18

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Solution

The fourth proportional to 907,640.66, 1,252,533.78 and 499,734.18 is: 689,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,640.66 : 1,252,533.78 = 499,734.18 : x
  2. Step 2: Convert to fraction form
    907,640.66/1,252,533.78 = 499,734.18/x
  3. Step 3: Cross multiply
    907,640.66x = 1,252,533.78 × 499,734.18
  4. Step 4: Simplify right side
    907,640.66x = 625,933,941,470.60
  5. Step 5: Solve for x
    x = 625,933,941,470.60/907,640.66
  6. Step 6: Final answer
    x = 689,627.48

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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.