Home / 822,132.78-1,232,451.78-316,371.24

Finding the Fourth Proportional to 822,132.78, 1,232,451.78 and 316,371.24

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Solution

The fourth proportional to 822,132.78, 1,232,451.78 and 316,371.24 is: 474,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,132.78 : 1,232,451.78 = 316,371.24 : x
  2. Step 2: Convert to fraction form
    822,132.78/1,232,451.78 = 316,371.24/x
  3. Step 3: Cross multiply
    822,132.78x = 1,232,451.78 × 316,371.24
  4. Step 4: Simplify right side
    822,132.78x = 389,912,297,878.81
  5. Step 5: Solve for x
    x = 389,912,297,878.81/822,132.78
  6. Step 6: Final answer
    x = 474,269.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.