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Finding the Fourth Proportional to 614,519.40, 920,223.90 and 490,103.40

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Solution

The fourth proportional to 614,519.40, 920,223.90 and 490,103.40 is: 733,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,519.40 : 920,223.90 = 490,103.40 : x
  2. Step 2: Convert to fraction form
    614,519.40/920,223.90 = 490,103.40/x
  3. Step 3: Cross multiply
    614,519.40x = 920,223.90 × 490,103.40
  4. Step 4: Simplify right side
    614,519.40x = 451,004,862,151.26
  5. Step 5: Solve for x
    x = 451,004,862,151.26/614,519.40
  6. Step 6: Final answer
    x = 733,914.77

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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.