Home / 813,235.02-1,122,309.27-450,651.30

Finding the Fourth Proportional to 813,235.02, 1,122,309.27 and 450,651.30

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Solution

The fourth proportional to 813,235.02, 1,122,309.27 and 450,651.30 is: 621,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,235.02 : 1,122,309.27 = 450,651.30 : x
  2. Step 2: Convert to fraction form
    813,235.02/1,122,309.27 = 450,651.30/x
  3. Step 3: Cross multiply
    813,235.02x = 1,122,309.27 × 450,651.30
  4. Step 4: Simplify right side
    813,235.02x = 505,770,131,527.55
  5. Step 5: Solve for x
    x = 505,770,131,527.55/813,235.02
  6. Step 6: Final answer
    x = 621,923.70

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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.