Home / 529,765.52-731,085.55-288,049.72

Finding the Fourth Proportional to 529,765.52, 731,085.55 and 288,049.72

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Solution

The fourth proportional to 529,765.52, 731,085.55 and 288,049.72 is: 397,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,765.52 : 731,085.55 = 288,049.72 : x
  2. Step 2: Convert to fraction form
    529,765.52/731,085.55 = 288,049.72/x
  3. Step 3: Cross multiply
    529,765.52x = 731,085.55 × 288,049.72
  4. Step 4: Simplify right side
    529,765.52x = 210,588,986,796.49
  5. Step 5: Solve for x
    x = 210,588,986,796.49/529,765.52
  6. Step 6: Final answer
    x = 397,513.58

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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.