Home / 724,239.99-1,086,401.48-191,747.16

Finding the Fourth Proportional to 724,239.99, 1,086,401.48 and 191,747.16

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Solution

The fourth proportional to 724,239.99, 1,086,401.48 and 191,747.16 is: 287,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,239.99 : 1,086,401.48 = 191,747.16 : x
  2. Step 2: Convert to fraction form
    724,239.99/1,086,401.48 = 191,747.16/x
  3. Step 3: Cross multiply
    724,239.99x = 1,086,401.48 × 191,747.16
  4. Step 4: Simplify right side
    724,239.99x = 208,314,397,451.06
  5. Step 5: Solve for x
    x = 208,314,397,451.06/724,239.99
  6. Step 6: Final answer
    x = 287,631.72

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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.