Home / 968,617.38-1,453,253.04-428,799.21

Finding the Fourth Proportional to 968,617.38, 1,453,253.04 and 428,799.21

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Solution

The fourth proportional to 968,617.38, 1,453,253.04 and 428,799.21 is: 643,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,617.38 : 1,453,253.04 = 428,799.21 : x
  2. Step 2: Convert to fraction form
    968,617.38/1,453,253.04 = 428,799.21/x
  3. Step 3: Cross multiply
    968,617.38x = 1,453,253.04 × 428,799.21
  4. Step 4: Simplify right side
    968,617.38x = 623,153,748,215.83
  5. Step 5: Solve for x
    x = 623,153,748,215.83/968,617.38
  6. Step 6: Final answer
    x = 643,343.55

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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.