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Finding the Fourth Proportional to 487,684.80, 730,101.60 and 347,716.80

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Solution

The fourth proportional to 487,684.80, 730,101.60 and 347,716.80 is: 520,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,684.80 : 730,101.60 = 347,716.80 : x
  2. Step 2: Convert to fraction form
    487,684.80/730,101.60 = 347,716.80/x
  3. Step 3: Cross multiply
    487,684.80x = 730,101.60 × 347,716.80
  4. Step 4: Simplify right side
    487,684.80x = 253,868,592,026.88
  5. Step 5: Solve for x
    x = 253,868,592,026.88/487,684.80
  6. Step 6: Final answer
    x = 520,558.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.