Home / 968,619.88-1,453,256.79-428,801.71

Finding the Fourth Proportional to 968,619.88, 1,453,256.79 and 428,801.71

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Solution

The fourth proportional to 968,619.88, 1,453,256.79 and 428,801.71 is: 643,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,619.88 : 1,453,256.79 = 428,801.71 : x
  2. Step 2: Convert to fraction form
    968,619.88/1,453,256.79 = 428,801.71/x
  3. Step 3: Cross multiply
    968,619.88x = 1,453,256.79 × 428,801.71
  4. Step 4: Simplify right side
    968,619.88x = 623,158,996,621.11
  5. Step 5: Solve for x
    x = 623,158,996,621.11/968,619.88
  6. Step 6: Final answer
    x = 643,347.31

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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.