Home / 674,297.40-1,011,446.10-320,003.40

Finding the Fourth Proportional to 674,297.40, 1,011,446.10 and 320,003.40

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Solution

The fourth proportional to 674,297.40, 1,011,446.10 and 320,003.40 is: 480,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,297.40 : 1,011,446.10 = 320,003.40 : x
  2. Step 2: Convert to fraction form
    674,297.40/1,011,446.10 = 320,003.40/x
  3. Step 3: Cross multiply
    674,297.40x = 1,011,446.10 × 320,003.40
  4. Step 4: Simplify right side
    674,297.40x = 323,666,190,916.74
  5. Step 5: Solve for x
    x = 323,666,190,916.74/674,297.40
  6. Step 6: Final answer
    x = 480,005.10

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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.