Home / 673,765.10-1,010,647.65-319,471.10

Finding the Fourth Proportional to 673,765.10, 1,010,647.65 and 319,471.10

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Solution

The fourth proportional to 673,765.10, 1,010,647.65 and 319,471.10 is: 479,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,765.10 : 1,010,647.65 = 319,471.10 : x
  2. Step 2: Convert to fraction form
    673,765.10/1,010,647.65 = 319,471.10/x
  3. Step 3: Cross multiply
    673,765.10x = 1,010,647.65 × 319,471.10
  4. Step 4: Simplify right side
    673,765.10x = 322,872,716,457.92
  5. Step 5: Solve for x
    x = 322,872,716,457.92/673,765.10
  6. Step 6: Final answer
    x = 479,206.65

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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.