Home / 529,724.96-731,034.78-288,023.76

Finding the Fourth Proportional to 529,724.96, 731,034.78 and 288,023.76

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Solution

The fourth proportional to 529,724.96, 731,034.78 and 288,023.76 is: 397,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,724.96 : 731,034.78 = 288,023.76 : x
  2. Step 2: Convert to fraction form
    529,724.96/731,034.78 = 288,023.76/x
  3. Step 3: Cross multiply
    529,724.96x = 731,034.78 × 288,023.76
  4. Step 4: Simplify right side
    529,724.96x = 210,555,386,026.37
  5. Step 5: Solve for x
    x = 210,555,386,026.37/529,724.96
  6. Step 6: Final answer
    x = 397,480.58

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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.