Home / 746,630.10-1,121,111.55-431,702.10

Finding the Fourth Proportional to 746,630.10, 1,121,111.55 and 431,702.10

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Solution

The fourth proportional to 746,630.10, 1,121,111.55 and 431,702.10 is: 648,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,630.10 : 1,121,111.55 = 431,702.10 : x
  2. Step 2: Convert to fraction form
    746,630.10/1,121,111.55 = 431,702.10/x
  3. Step 3: Cross multiply
    746,630.10x = 1,121,111.55 × 431,702.10
  4. Step 4: Simplify right side
    746,630.10x = 483,986,210,469.26
  5. Step 5: Solve for x
    x = 483,986,210,469.26/746,630.10
  6. Step 6: Final answer
    x = 648,227.56

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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.