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Finding the Fourth Proportional to 550,450.08, 758,918.16 and 356,515.29

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Solution

The fourth proportional to 550,450.08, 758,918.16 and 356,515.29 is: 491,535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,450.08 : 758,918.16 = 356,515.29 : x
  2. Step 2: Convert to fraction form
    550,450.08/758,918.16 = 356,515.29/x
  3. Step 3: Cross multiply
    550,450.08x = 758,918.16 × 356,515.29
  4. Step 4: Simplify right side
    550,450.08x = 270,565,927,898.67
  5. Step 5: Solve for x
    x = 270,565,927,898.67/550,450.08
  6. Step 6: Final answer
    x = 491,535.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.