Home / 793,012.72-1,189,752.36-319,454.32

Finding the Fourth Proportional to 793,012.72, 1,189,752.36 and 319,454.32

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Solution

The fourth proportional to 793,012.72, 1,189,752.36 and 319,454.32 is: 479,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,012.72 : 1,189,752.36 = 319,454.32 : x
  2. Step 2: Convert to fraction form
    793,012.72/1,189,752.36 = 319,454.32/x
  3. Step 3: Cross multiply
    793,012.72x = 1,189,752.36 × 319,454.32
  4. Step 4: Simplify right side
    793,012.72x = 380,071,531,132.20
  5. Step 5: Solve for x
    x = 380,071,531,132.20/793,012.72
  6. Step 6: Final answer
    x = 479,275.45

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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.