Home / 529,922.05-731,285.28-288,199.42

Finding the Fourth Proportional to 529,922.05, 731,285.28 and 288,199.42

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Solution

The fourth proportional to 529,922.05, 731,285.28 and 288,199.42 is: 397,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,922.05 : 731,285.28 = 288,199.42 : x
  2. Step 2: Convert to fraction form
    529,922.05/731,285.28 = 288,199.42/x
  3. Step 3: Cross multiply
    529,922.05x = 731,285.28 × 288,199.42
  4. Step 4: Simplify right side
    529,922.05x = 210,755,991,722.32
  5. Step 5: Solve for x
    x = 210,755,991,722.32/529,922.05
  6. Step 6: Final answer
    x = 397,711.31

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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.