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Finding the Fourth Proportional to 607,460.30, 911,190.45 and 489,362.30

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Solution

The fourth proportional to 607,460.30, 911,190.45 and 489,362.30 is: 734,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,460.30 : 911,190.45 = 489,362.30 : x
  2. Step 2: Convert to fraction form
    607,460.30/911,190.45 = 489,362.30/x
  3. Step 3: Cross multiply
    607,460.30x = 911,190.45 × 489,362.30
  4. Step 4: Simplify right side
    607,460.30x = 445,902,254,350.04
  5. Step 5: Solve for x
    x = 445,902,254,350.04/607,460.30
  6. Step 6: Final answer
    x = 734,043.45

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Double scale
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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.