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Finding the Fourth Proportional to 632,081.60, 949,807.20 and 347,998.40

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Solution

The fourth proportional to 632,081.60, 949,807.20 and 347,998.40 is: 522,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,081.60 : 949,807.20 = 347,998.40 : x
  2. Step 2: Convert to fraction form
    632,081.60/949,807.20 = 347,998.40/x
  3. Step 3: Cross multiply
    632,081.60x = 949,807.20 × 347,998.40
  4. Step 4: Simplify right side
    632,081.60x = 330,531,385,908.48
  5. Step 5: Solve for x
    x = 330,531,385,908.48/632,081.60
  6. Step 6: Final answer
    x = 522,925.18

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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.