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Finding the Fourth Proportional to 489,374.90, 734,062.35 and 489,374.90

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Solution

The fourth proportional to 489,374.90, 734,062.35 and 489,374.90 is: 734,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,374.90 : 734,062.35 = 489,374.90 : x
  2. Step 2: Convert to fraction form
    489,374.90/734,062.35 = 489,374.90/x
  3. Step 3: Cross multiply
    489,374.90x = 734,062.35 × 489,374.90
  4. Step 4: Simplify right side
    489,374.90x = 359,231,689,125.02
  5. Step 5: Solve for x
    x = 359,231,689,125.02/489,374.90
  6. Step 6: Final answer
    x = 734,062.35

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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.