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Finding the Fourth Proportional to 623,732.60, 933,630.60 and 489,888.20

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Solution

The fourth proportional to 623,732.60, 933,630.60 and 489,888.20 is: 733,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,732.60 : 933,630.60 = 489,888.20 : x
  2. Step 2: Convert to fraction form
    623,732.60/933,630.60 = 489,888.20/x
  3. Step 3: Cross multiply
    623,732.60x = 933,630.60 × 489,888.20
  4. Step 4: Simplify right side
    623,732.60x = 457,374,614,098.92
  5. Step 5: Solve for x
    x = 457,374,614,098.92/623,732.60
  6. Step 6: Final answer
    x = 733,286.37

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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.