Home / 867,167.10-1,301,139.45-393,608.70

Finding the Fourth Proportional to 867,167.10, 1,301,139.45 and 393,608.70

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Solution

The fourth proportional to 867,167.10, 1,301,139.45 and 393,608.70 is: 590,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,167.10 : 1,301,139.45 = 393,608.70 : x
  2. Step 2: Convert to fraction form
    867,167.10/1,301,139.45 = 393,608.70/x
  3. Step 3: Cross multiply
    867,167.10x = 1,301,139.45 × 393,608.70
  4. Step 4: Simplify right side
    867,167.10x = 512,139,807,433.22
  5. Step 5: Solve for x
    x = 512,139,807,433.22/867,167.10
  6. Step 6: Final answer
    x = 590,589.53

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Double scale
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1.5x scale

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.