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Finding the Fourth Proportional to 489,629.70, 734,444.55 and 454,200.30

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Solution

The fourth proportional to 489,629.70, 734,444.55 and 454,200.30 is: 681,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,629.70 : 734,444.55 = 454,200.30 : x
  2. Step 2: Convert to fraction form
    489,629.70/734,444.55 = 454,200.30/x
  3. Step 3: Cross multiply
    489,629.70x = 734,444.55 × 454,200.30
  4. Step 4: Simplify right side
    489,629.70x = 333,584,934,943.37
  5. Step 5: Solve for x
    x = 333,584,934,943.37/489,629.70
  6. Step 6: Final answer
    x = 681,300.45

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Similar ratio
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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.