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Finding the Fourth Proportional to 489,085.40, 733,628.10 and 489,085.40

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Solution

The fourth proportional to 489,085.40, 733,628.10 and 489,085.40 is: 733,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,085.40 : 733,628.10 = 489,085.40 : x
  2. Step 2: Convert to fraction form
    489,085.40/733,628.10 = 489,085.40/x
  3. Step 3: Cross multiply
    489,085.40x = 733,628.10 × 489,085.40
  4. Step 4: Simplify right side
    489,085.40x = 358,806,792,739.74
  5. Step 5: Solve for x
    x = 358,806,792,739.74/489,085.40
  6. Step 6: Final answer
    x = 733,628.10

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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.