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Finding the Fourth Proportional to 614,246.40, 921,369.60 and 454,814.10

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Solution

The fourth proportional to 614,246.40, 921,369.60 and 454,814.10 is: 682,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,246.40 : 921,369.60 = 454,814.10 : x
  2. Step 2: Convert to fraction form
    614,246.40/921,369.60 = 454,814.10/x
  3. Step 3: Cross multiply
    614,246.40x = 921,369.60 × 454,814.10
  4. Step 4: Simplify right side
    614,246.40x = 419,051,885,391.36
  5. Step 5: Solve for x
    x = 419,051,885,391.36/614,246.40
  6. Step 6: Final answer
    x = 682,221.15

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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.