Home / 529,989.73-731,378.76-288,267.10

Finding the Fourth Proportional to 529,989.73, 731,378.76 and 288,267.10

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Solution

The fourth proportional to 529,989.73, 731,378.76 and 288,267.10 is: 397,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,989.73 : 731,378.76 = 288,267.10 : x
  2. Step 2: Convert to fraction form
    529,989.73/731,378.76 = 288,267.10/x
  3. Step 3: Cross multiply
    529,989.73x = 731,378.76 × 288,267.10
  4. Step 4: Simplify right side
    529,989.73x = 210,832,434,146.80
  5. Step 5: Solve for x
    x = 210,832,434,146.80/529,989.73
  6. Step 6: Final answer
    x = 397,804.75

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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.