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Finding the Fourth Proportional to 550,404.40, 825,606.60 and 425,834.80

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Solution

The fourth proportional to 550,404.40, 825,606.60 and 425,834.80 is: 638,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,404.40 : 825,606.60 = 425,834.80 : x
  2. Step 2: Convert to fraction form
    550,404.40/825,606.60 = 425,834.80/x
  3. Step 3: Cross multiply
    550,404.40x = 825,606.60 × 425,834.80
  4. Step 4: Simplify right side
    550,404.40x = 351,572,021,389.68
  5. Step 5: Solve for x
    x = 351,572,021,389.68/550,404.40
  6. Step 6: Final answer
    x = 638,752.20

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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.