Home / 881,215.75-1,216,085.16-478,807.75

Finding the Fourth Proportional to 881,215.75, 1,216,085.16 and 478,807.75

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Solution

The fourth proportional to 881,215.75, 1,216,085.16 and 478,807.75 is: 660,758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,215.75 : 1,216,085.16 = 478,807.75 : x
  2. Step 2: Convert to fraction form
    881,215.75/1,216,085.16 = 478,807.75/x
  3. Step 3: Cross multiply
    881,215.75x = 1,216,085.16 × 478,807.75
  4. Step 4: Simplify right side
    881,215.75x = 582,270,999,267.99
  5. Step 5: Solve for x
    x = 582,270,999,267.99/881,215.75
  6. Step 6: Final answer
    x = 660,758.73

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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.