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Finding the Fourth Proportional to 528,255.60, 792,901.80 and 262,316.40

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Solution

The fourth proportional to 528,255.60, 792,901.80 and 262,316.40 is: 393,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,255.60 : 792,901.80 = 262,316.40 : x
  2. Step 2: Convert to fraction form
    528,255.60/792,901.80 = 262,316.40/x
  3. Step 3: Cross multiply
    528,255.60x = 792,901.80 × 262,316.40
  4. Step 4: Simplify right side
    528,255.60x = 207,991,145,729.52
  5. Step 5: Solve for x
    x = 207,991,145,729.52/528,255.60
  6. Step 6: Final answer
    x = 393,732.02

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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.