Home / 782,746.92-1,080,208.26-438,608.52

Finding the Fourth Proportional to 782,746.92, 1,080,208.26 and 438,608.52

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Solution

The fourth proportional to 782,746.92, 1,080,208.26 and 438,608.52 is: 605,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,746.92 : 1,080,208.26 = 438,608.52 : x
  2. Step 2: Convert to fraction form
    782,746.92/1,080,208.26 = 438,608.52/x
  3. Step 3: Cross multiply
    782,746.92x = 1,080,208.26 × 438,608.52
  4. Step 4: Simplify right side
    782,746.92x = 473,788,546,210.38
  5. Step 5: Solve for x
    x = 473,788,546,210.38/782,746.92
  6. Step 6: Final answer
    x = 605,289.57

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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.