Home / 1,431,650.31-2,147,475.47-434,378.31

Finding the Fourth Proportional to 1,431,650.31, 2,147,475.47 and 434,378.31

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Solution

The fourth proportional to 1,431,650.31, 2,147,475.47 and 434,378.31 is: 651,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,650.31 : 2,147,475.47 = 434,378.31 : x
  2. Step 2: Convert to fraction form
    1,431,650.31/2,147,475.47 = 434,378.31/x
  3. Step 3: Cross multiply
    1,431,650.31x = 2,147,475.47 × 434,378.31
  4. Step 4: Simplify right side
    1,431,650.31x = 932,816,770,793.75
  5. Step 5: Solve for x
    x = 932,816,770,793.75/1,431,650.31
  6. Step 6: Final answer
    x = 651,567.47

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Double scale
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Similar ratio
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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.