Home / 818,981.20-1,130,144.32-451,442.23

Finding the Fourth Proportional to 818,981.20, 1,130,144.32 and 451,442.23

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Solution

The fourth proportional to 818,981.20, 1,130,144.32 and 451,442.23 is: 622,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,981.20 : 1,130,144.32 = 451,442.23 : x
  2. Step 2: Convert to fraction form
    818,981.20/1,130,144.32 = 451,442.23/x
  3. Step 3: Cross multiply
    818,981.20x = 1,130,144.32 × 451,442.23
  4. Step 4: Simplify right side
    818,981.20x = 510,194,867,242.21
  5. Step 5: Solve for x
    x = 510,194,867,242.21/818,981.20
  6. Step 6: Final answer
    x = 622,962.86

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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.