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Finding the Fourth Proportional to 528,053.70, 792,080.55 and 469,992.90

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Solution

The fourth proportional to 528,053.70, 792,080.55 and 469,992.90 is: 704,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,053.70 : 792,080.55 = 469,992.90 : x
  2. Step 2: Convert to fraction form
    528,053.70/792,080.55 = 469,992.90/x
  3. Step 3: Cross multiply
    528,053.70x = 792,080.55 × 469,992.90
  4. Step 4: Simplify right side
    528,053.70x = 372,272,234,728.10
  5. Step 5: Solve for x
    x = 372,272,234,728.10/528,053.70
  6. Step 6: Final answer
    x = 704,989.35

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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.