Home / 813,121.58-1,122,014.76-450,454.88

Finding the Fourth Proportional to 813,121.58, 1,122,014.76 and 450,454.88

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Solution

The fourth proportional to 813,121.58, 1,122,014.76 and 450,454.88 is: 621,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,121.58 : 1,122,014.76 = 450,454.88 : x
  2. Step 2: Convert to fraction form
    813,121.58/1,122,014.76 = 450,454.88/x
  3. Step 3: Cross multiply
    813,121.58x = 1,122,014.76 × 450,454.88
  4. Step 4: Simplify right side
    813,121.58x = 505,417,024,074.03
  5. Step 5: Solve for x
    x = 505,417,024,074.03/813,121.58
  6. Step 6: Final answer
    x = 621,576.20

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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.