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Finding the Fourth Proportional to 743,806.92, 1,026,453.47 and 442,000.92

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Solution

The fourth proportional to 743,806.92, 1,026,453.47 and 442,000.92 is: 609,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,806.92 : 1,026,453.47 = 442,000.92 : x
  2. Step 2: Convert to fraction form
    743,806.92/1,026,453.47 = 442,000.92/x
  3. Step 3: Cross multiply
    743,806.92x = 1,026,453.47 × 442,000.92
  4. Step 4: Simplify right side
    743,806.92x = 453,693,375,867.19
  5. Step 5: Solve for x
    x = 453,693,375,867.19/743,806.92
  6. Step 6: Final answer
    x = 609,961.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.