Home / 529,922.42-731,285.80-288,199.79

Finding the Fourth Proportional to 529,922.42, 731,285.80 and 288,199.79

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Solution

The fourth proportional to 529,922.42, 731,285.80 and 288,199.79 is: 397,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,922.42 : 731,285.80 = 288,199.79 : x
  2. Step 2: Convert to fraction form
    529,922.42/731,285.80 = 288,199.79/x
  3. Step 3: Cross multiply
    529,922.42x = 731,285.80 × 288,199.79
  4. Step 4: Simplify right side
    529,922.42x = 210,756,415,097.70
  5. Step 5: Solve for x
    x = 210,756,415,097.70/529,922.42
  6. Step 6: Final answer
    x = 397,711.83

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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.