Home / 529,734.75-731,010.20-300,288.75

Finding the Fourth Proportional to 529,734.75, 731,010.20 and 300,288.75

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Solution

The fourth proportional to 529,734.75, 731,010.20 and 300,288.75 is: 414,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,734.75 : 731,010.20 = 300,288.75 : x
  2. Step 2: Convert to fraction form
    529,734.75/731,010.20 = 300,288.75/x
  3. Step 3: Cross multiply
    529,734.75x = 731,010.20 × 300,288.75
  4. Step 4: Simplify right side
    529,734.75x = 219,514,137,693.81
  5. Step 5: Solve for x
    x = 219,514,137,693.81/529,734.75
  6. Step 6: Final answer
    x = 414,385.01

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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.