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Finding the Fourth Proportional to 534,259.60, 737,279.47 and 289,246.95

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Solution

The fourth proportional to 534,259.60, 737,279.47 and 289,246.95 is: 399,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,259.60 : 737,279.47 = 289,246.95 : x
  2. Step 2: Convert to fraction form
    534,259.60/737,279.47 = 289,246.95/x
  3. Step 3: Cross multiply
    534,259.60x = 737,279.47 × 289,246.95
  4. Step 4: Simplify right side
    534,259.60x = 213,255,836,729.66
  5. Step 5: Solve for x
    x = 213,255,836,729.66/534,259.60
  6. Step 6: Final answer
    x = 399,161.45

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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.