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Finding the Fourth Proportional to 605,362.40, 908,043.60 and 538,877.60

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Solution

The fourth proportional to 605,362.40, 908,043.60 and 538,877.60 is: 808,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,362.40 : 908,043.60 = 538,877.60 : x
  2. Step 2: Convert to fraction form
    605,362.40/908,043.60 = 538,877.60/x
  3. Step 3: Cross multiply
    605,362.40x = 908,043.60 × 538,877.60
  4. Step 4: Simplify right side
    605,362.40x = 489,324,355,863.36
  5. Step 5: Solve for x
    x = 489,324,355,863.36/605,362.40
  6. Step 6: Final answer
    x = 808,316.40

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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.