Home / 529,788.80-731,098.20-288,069.26

Finding the Fourth Proportional to 529,788.80, 731,098.20 and 288,069.26

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Solution

The fourth proportional to 529,788.80, 731,098.20 and 288,069.26 is: 397,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,788.80 : 731,098.20 = 288,069.26 : x
  2. Step 2: Convert to fraction form
    529,788.80/731,098.20 = 288,069.26/x
  3. Step 3: Cross multiply
    529,788.80x = 731,098.20 × 288,069.26
  4. Step 4: Simplify right side
    529,788.80x = 210,606,917,461.33
  5. Step 5: Solve for x
    x = 210,606,917,461.33/529,788.80
  6. Step 6: Final answer
    x = 397,529.95

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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.