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Finding the Fourth Proportional to 528,464.80, 792,697.20 and 488,029.60

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Solution

The fourth proportional to 528,464.80, 792,697.20 and 488,029.60 is: 732,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,464.80 : 792,697.20 = 488,029.60 : x
  2. Step 2: Convert to fraction form
    528,464.80/792,697.20 = 488,029.60/x
  3. Step 3: Cross multiply
    528,464.80x = 792,697.20 × 488,029.60
  4. Step 4: Simplify right side
    528,464.80x = 386,859,697,437.12
  5. Step 5: Solve for x
    x = 386,859,697,437.12/528,464.80
  6. Step 6: Final answer
    x = 732,044.40

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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.