Home / 968,618.88-1,453,255.29-428,800.71

Finding the Fourth Proportional to 968,618.88, 1,453,255.29 and 428,800.71

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Solution

The fourth proportional to 968,618.88, 1,453,255.29 and 428,800.71 is: 643,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,618.88 : 1,453,255.29 = 428,800.71 : x
  2. Step 2: Convert to fraction form
    968,618.88/1,453,255.29 = 428,800.71/x
  3. Step 3: Cross multiply
    968,618.88x = 1,453,255.29 × 428,800.71
  4. Step 4: Simplify right side
    968,618.88x = 623,156,900,163.26
  5. Step 5: Solve for x
    x = 623,156,900,163.26/968,618.88
  6. Step 6: Final answer
    x = 643,345.81

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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.