Home / 673,764.60-1,010,646.90-319,470.60

Finding the Fourth Proportional to 673,764.60, 1,010,646.90 and 319,470.60

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Solution

The fourth proportional to 673,764.60, 1,010,646.90 and 319,470.60 is: 479,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,764.60 : 1,010,646.90 = 319,470.60 : x
  2. Step 2: Convert to fraction form
    673,764.60/1,010,646.90 = 319,470.60/x
  3. Step 3: Cross multiply
    673,764.60x = 1,010,646.90 × 319,470.60
  4. Step 4: Simplify right side
    673,764.60x = 322,871,971,531.14
  5. Step 5: Solve for x
    x = 322,871,971,531.14/673,764.60
  6. Step 6: Final answer
    x = 479,205.90

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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.