Home / 529,818.33-731,140.95-288,098.79

Finding the Fourth Proportional to 529,818.33, 731,140.95 and 288,098.79

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Solution

The fourth proportional to 529,818.33, 731,140.95 and 288,098.79 is: 397,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,818.33 : 731,140.95 = 288,098.79 : x
  2. Step 2: Convert to fraction form
    529,818.33/731,140.95 = 288,098.79/x
  3. Step 3: Cross multiply
    529,818.33x = 731,140.95 × 288,098.79
  4. Step 4: Simplify right side
    529,818.33x = 210,640,821,353.04
  5. Step 5: Solve for x
    x = 210,640,821,353.04/529,818.33
  6. Step 6: Final answer
    x = 397,571.79

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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.