Home / 745,146.45-1,117,092.74-324,105.21

Finding the Fourth Proportional to 745,146.45, 1,117,092.74 and 324,105.21

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Solution

The fourth proportional to 745,146.45, 1,117,092.74 and 324,105.21 is: 485,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,146.45 : 1,117,092.74 = 324,105.21 : x
  2. Step 2: Convert to fraction form
    745,146.45/1,117,092.74 = 324,105.21/x
  3. Step 3: Cross multiply
    745,146.45x = 1,117,092.74 × 324,105.21
  4. Step 4: Simplify right side
    745,146.45x = 362,055,575,466.65
  5. Step 5: Solve for x
    x = 362,055,575,466.65/745,146.45
  6. Step 6: Final answer
    x = 485,885.12

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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.