Home / 529,832.06-731,145.98-300,404.78

Finding the Fourth Proportional to 529,832.06, 731,145.98 and 300,404.78

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Solution

The fourth proportional to 529,832.06, 731,145.98 and 300,404.78 is: 414,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,832.06 : 731,145.98 = 300,404.78 : x
  2. Step 2: Convert to fraction form
    529,832.06/731,145.98 = 300,404.78/x
  3. Step 3: Cross multiply
    529,832.06x = 731,145.98 × 300,404.78
  4. Step 4: Simplify right side
    529,832.06x = 219,639,747,269.78
  5. Step 5: Solve for x
    x = 219,639,747,269.78/529,832.06
  6. Step 6: Final answer
    x = 414,545.97

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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.