Home / 674,311.77-1,011,965.40-319,325.22

Finding the Fourth Proportional to 674,311.77, 1,011,965.40 and 319,325.22

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Solution

The fourth proportional to 674,311.77, 1,011,965.40 and 319,325.22 is: 479,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,311.77 : 1,011,965.40 = 319,325.22 : x
  2. Step 2: Convert to fraction form
    674,311.77/1,011,965.40 = 319,325.22/x
  3. Step 3: Cross multiply
    674,311.77x = 1,011,965.40 × 319,325.22
  4. Step 4: Simplify right side
    674,311.77x = 323,146,073,987.39
  5. Step 5: Solve for x
    x = 323,146,073,987.39/674,311.77
  6. Step 6: Final answer
    x = 479,223.54

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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.