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Finding the Fourth Proportional to 650,272.91, 897,683.45 and 489,189.42

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Solution

The fourth proportional to 650,272.91, 897,683.45 and 489,189.42 is: 675,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,272.91 : 897,683.45 = 489,189.42 : x
  2. Step 2: Convert to fraction form
    650,272.91/897,683.45 = 489,189.42/x
  3. Step 3: Cross multiply
    650,272.91x = 897,683.45 × 489,189.42
  4. Step 4: Simplify right side
    650,272.91x = 439,137,243,803.15
  5. Step 5: Solve for x
    x = 439,137,243,803.15/650,272.91
  6. Step 6: Final answer
    x = 675,312.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.