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Finding the Fourth Proportional to 528,086.40, 792,129.60 and 304,137.60

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Solution

The fourth proportional to 528,086.40, 792,129.60 and 304,137.60 is: 456,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,086.40 : 792,129.60 = 304,137.60 : x
  2. Step 2: Convert to fraction form
    528,086.40/792,129.60 = 304,137.60/x
  3. Step 3: Cross multiply
    528,086.40x = 792,129.60 × 304,137.60
  4. Step 4: Simplify right side
    528,086.40x = 240,916,395,432.96
  5. Step 5: Solve for x
    x = 240,916,395,432.96/528,086.40
  6. Step 6: Final answer
    x = 456,206.40

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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.