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Finding the Fourth Proportional to 922,701.60, 1,383,793.20 and 291,808.80

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Solution

The fourth proportional to 922,701.60, 1,383,793.20 and 291,808.80 is: 437,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,701.60 : 1,383,793.20 = 291,808.80 : x
  2. Step 2: Convert to fraction form
    922,701.60/1,383,793.20 = 291,808.80/x
  3. Step 3: Cross multiply
    922,701.60x = 1,383,793.20 × 291,808.80
  4. Step 4: Simplify right side
    922,701.60x = 403,803,033,140.16
  5. Step 5: Solve for x
    x = 403,803,033,140.16/922,701.60
  6. Step 6: Final answer
    x = 437,631.23

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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.