Home / 529,826.36-731,169.06-288,113.72

Finding the Fourth Proportional to 529,826.36, 731,169.06 and 288,113.72

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Solution

The fourth proportional to 529,826.36, 731,169.06 and 288,113.72 is: 397,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,826.36 : 731,169.06 = 288,113.72 : x
  2. Step 2: Convert to fraction form
    529,826.36/731,169.06 = 288,113.72/x
  3. Step 3: Cross multiply
    529,826.36x = 731,169.06 × 288,113.72
  4. Step 4: Simplify right side
    529,826.36x = 210,659,837,825.50
  5. Step 5: Solve for x
    x = 210,659,837,825.50/529,826.36
  6. Step 6: Final answer
    x = 397,601.66

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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.