Home / 822,142.78-1,232,466.78-316,381.24

Finding the Fourth Proportional to 822,142.78, 1,232,466.78 and 316,381.24

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Solution

The fourth proportional to 822,142.78, 1,232,466.78 and 316,381.24 is: 474,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,142.78 : 1,232,466.78 = 316,381.24 : x
  2. Step 2: Convert to fraction form
    822,142.78/1,232,466.78 = 316,381.24/x
  3. Step 3: Cross multiply
    822,142.78x = 1,232,466.78 × 316,381.24
  4. Step 4: Simplify right side
    822,142.78x = 389,929,368,115.21
  5. Step 5: Solve for x
    x = 389,929,368,115.21/822,142.78
  6. Step 6: Final answer
    x = 474,284.25

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Double scale
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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.