Home / 538,211.07-743,486.72-509,867.55

Finding the Fourth Proportional to 538,211.07, 743,486.72 and 509,867.55

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Solution

The fourth proportional to 538,211.07, 743,486.72 and 509,867.55 is: 704,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,211.07 : 743,486.72 = 509,867.55 : x
  2. Step 2: Convert to fraction form
    538,211.07/743,486.72 = 509,867.55/x
  3. Step 3: Cross multiply
    538,211.07x = 743,486.72 × 509,867.55
  4. Step 4: Simplify right side
    538,211.07x = 379,079,749,834.60
  5. Step 5: Solve for x
    x = 379,079,749,834.60/538,211.07
  6. Step 6: Final answer
    x = 704,332.87

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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.