Home / 947,135.60-1,420,549.88-347,949.36

Finding the Fourth Proportional to 947,135.60, 1,420,549.88 and 347,949.36

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Solution

The fourth proportional to 947,135.60, 1,420,549.88 and 347,949.36 is: 521,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,135.60 : 1,420,549.88 = 347,949.36 : x
  2. Step 2: Convert to fraction form
    947,135.60/1,420,549.88 = 347,949.36/x
  3. Step 3: Cross multiply
    947,135.60x = 1,420,549.88 × 347,949.36
  4. Step 4: Simplify right side
    947,135.60x = 494,279,421,594.08
  5. Step 5: Solve for x
    x = 494,279,421,594.08/947,135.60
  6. Step 6: Final answer
    x = 521,867.64

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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.