Home / 646,175.52-968,633.28-309,128.16

Finding the Fourth Proportional to 646,175.52, 968,633.28 and 309,128.16

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Solution

The fourth proportional to 646,175.52, 968,633.28 and 309,128.16 is: 463,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,175.52 : 968,633.28 = 309,128.16 : x
  2. Step 2: Convert to fraction form
    646,175.52/968,633.28 = 309,128.16/x
  3. Step 3: Cross multiply
    646,175.52x = 968,633.28 × 309,128.16
  4. Step 4: Simplify right side
    646,175.52x = 299,431,823,561.17
  5. Step 5: Solve for x
    x = 299,431,823,561.17/646,175.52
  6. Step 6: Final answer
    x = 463,390.85

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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.