Home / 689,170.07-1,033,755.10-314,930.63

Finding the Fourth Proportional to 689,170.07, 1,033,755.10 and 314,930.63

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Solution

The fourth proportional to 689,170.07, 1,033,755.10 and 314,930.63 is: 472,395.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,170.07 : 1,033,755.10 = 314,930.63 : x
  2. Step 2: Convert to fraction form
    689,170.07/1,033,755.10 = 314,930.63/x
  3. Step 3: Cross multiply
    689,170.07x = 1,033,755.10 × 314,930.63
  4. Step 4: Simplify right side
    689,170.07x = 325,561,138,952.61
  5. Step 5: Solve for x
    x = 325,561,138,952.61/689,170.07
  6. Step 6: Final answer
    x = 472,395.94

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1.5x scale

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.