Home / 881,300.76-1,216,213.02-478,918.68

Finding the Fourth Proportional to 881,300.76, 1,216,213.02 and 478,918.68

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Solution

The fourth proportional to 881,300.76, 1,216,213.02 and 478,918.68 is: 660,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,300.76 : 1,216,213.02 = 478,918.68 : x
  2. Step 2: Convert to fraction form
    881,300.76/1,216,213.02 = 478,918.68/x
  3. Step 3: Cross multiply
    881,300.76x = 1,216,213.02 × 478,918.68
  4. Step 4: Simplify right side
    881,300.76x = 582,467,134,137.21
  5. Step 5: Solve for x
    x = 582,467,134,137.21/881,300.76
  6. Step 6: Final answer
    x = 660,917.54

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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.