Home / 881,225.28-1,216,088.64-478,817.28

Finding the Fourth Proportional to 881,225.28, 1,216,088.64 and 478,817.28

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Solution

The fourth proportional to 881,225.28, 1,216,088.64 and 478,817.28 is: 660,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,225.28 : 1,216,088.64 = 478,817.28 : x
  2. Step 2: Convert to fraction form
    881,225.28/1,216,088.64 = 478,817.28/x
  3. Step 3: Cross multiply
    881,225.28x = 1,216,088.64 × 478,817.28
  4. Step 4: Simplify right side
    881,225.28x = 582,284,254,843.70
  5. Step 5: Solve for x
    x = 582,284,254,843.70/881,225.28
  6. Step 6: Final answer
    x = 660,766.63

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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.