Home / 529,780.23-731,091.62-288,062.89

Finding the Fourth Proportional to 529,780.23, 731,091.62 and 288,062.89

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Solution

The fourth proportional to 529,780.23, 731,091.62 and 288,062.89 is: 397,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,780.23 : 731,091.62 = 288,062.89 : x
  2. Step 2: Convert to fraction form
    529,780.23/731,091.62 = 288,062.89/x
  3. Step 3: Cross multiply
    529,780.23x = 731,091.62 × 288,062.89
  4. Step 4: Simplify right side
    529,780.23x = 210,600,363,471.67
  5. Step 5: Solve for x
    x = 210,600,363,471.67/529,780.23
  6. Step 6: Final answer
    x = 397,524.02

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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.