Home / 529,743.21-731,041.89-288,025.83

Finding the Fourth Proportional to 529,743.21, 731,041.89 and 288,025.83

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Solution

The fourth proportional to 529,743.21, 731,041.89 and 288,025.83 is: 397,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,743.21 : 731,041.89 = 288,025.83 : x
  2. Step 2: Convert to fraction form
    529,743.21/731,041.89 = 288,025.83/x
  3. Step 3: Cross multiply
    529,743.21x = 731,041.89 × 288,025.83
  4. Step 4: Simplify right side
    529,743.21x = 210,558,947,132.02
  5. Step 5: Solve for x
    x = 210,558,947,132.02/529,743.21
  6. Step 6: Final answer
    x = 397,473.61

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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.