Home / 673,670.40-1,010,505.60-319,376.40

Finding the Fourth Proportional to 673,670.40, 1,010,505.60 and 319,376.40

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Solution

The fourth proportional to 673,670.40, 1,010,505.60 and 319,376.40 is: 479,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,670.40 : 1,010,505.60 = 319,376.40 : x
  2. Step 2: Convert to fraction form
    673,670.40/1,010,505.60 = 319,376.40/x
  3. Step 3: Cross multiply
    673,670.40x = 1,010,505.60 × 319,376.40
  4. Step 4: Simplify right side
    673,670.40x = 322,731,640,707.84
  5. Step 5: Solve for x
    x = 322,731,640,707.84/673,670.40
  6. Step 6: Final answer
    x = 479,064.60

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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.