Home / 646,393.08-968,279.20-299,689.57

Finding the Fourth Proportional to 646,393.08, 968,279.20 and 299,689.57

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Solution

The fourth proportional to 646,393.08, 968,279.20 and 299,689.57 is: 448,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,393.08 : 968,279.20 = 299,689.57 : x
  2. Step 2: Convert to fraction form
    646,393.08/968,279.20 = 299,689.57/x
  3. Step 3: Cross multiply
    646,393.08x = 968,279.20 × 299,689.57
  4. Step 4: Simplify right side
    646,393.08x = 290,183,173,918.02
  5. Step 5: Solve for x
    x = 290,183,173,918.02/646,393.08
  6. Step 6: Final answer
    x = 448,926.80

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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.