Home / 907,738.16-1,252,687.86-499,877.90

Finding the Fourth Proportional to 907,738.16, 1,252,687.86 and 499,877.90

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Solution

The fourth proportional to 907,738.16, 1,252,687.86 and 499,877.90 is: 689,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,738.16 : 1,252,687.86 = 499,877.90 : x
  2. Step 2: Convert to fraction form
    907,738.16/1,252,687.86 = 499,877.90/x
  3. Step 3: Cross multiply
    907,738.16x = 1,252,687.86 × 499,877.90
  4. Step 4: Simplify right side
    907,738.16x = 626,190,976,812.29
  5. Step 5: Solve for x
    x = 626,190,976,812.29/907,738.16
  6. Step 6: Final answer
    x = 689,836.57

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1.5x scale

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.