Home / 832,012.48-1,248,180.54-319,640.29

Finding the Fourth Proportional to 832,012.48, 1,248,180.54 and 319,640.29

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Solution

The fourth proportional to 832,012.48, 1,248,180.54 and 319,640.29 is: 479,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,012.48 : 1,248,180.54 = 319,640.29 : x
  2. Step 2: Convert to fraction form
    832,012.48/1,248,180.54 = 319,640.29/x
  3. Step 3: Cross multiply
    832,012.48x = 1,248,180.54 × 319,640.29
  4. Step 4: Simplify right side
    832,012.48x = 398,968,789,777.96
  5. Step 5: Solve for x
    x = 398,968,789,777.96/832,012.48
  6. Step 6: Final answer
    x = 479,522.60

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Double scale
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Similar ratio
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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.