Home / 1,538,568.30-2,308,279.05-640,433.10

Finding the Fourth Proportional to 1,538,568.30, 2,308,279.05 and 640,433.10

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Solution

The fourth proportional to 1,538,568.30, 2,308,279.05 and 640,433.10 is: 960,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,568.30 : 2,308,279.05 = 640,433.10 : x
  2. Step 2: Convert to fraction form
    1,538,568.30/2,308,279.05 = 640,433.10/x
  3. Step 3: Cross multiply
    1,538,568.30x = 2,308,279.05 × 640,433.10
  4. Step 4: Simplify right side
    1,538,568.30x = 1,478,298,307,656.56
  5. Step 5: Solve for x
    x = 1,478,298,307,656.56/1,538,568.30
  6. Step 6: Final answer
    x = 960,827.22

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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.