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Finding the Fourth Proportional to 543,222.89, 749,642.18 and 301,499.25

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Solution

The fourth proportional to 543,222.89, 749,642.18 and 301,499.25 is: 416,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,222.89 : 749,642.18 = 301,499.25 : x
  2. Step 2: Convert to fraction form
    543,222.89/749,642.18 = 301,499.25/x
  3. Step 3: Cross multiply
    543,222.89x = 749,642.18 × 301,499.25
  4. Step 4: Simplify right side
    543,222.89x = 226,016,555,038.37
  5. Step 5: Solve for x
    x = 226,016,555,038.37/543,222.89
  6. Step 6: Final answer
    x = 416,065.96

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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.