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Finding the Fourth Proportional to 528,577.70, 792,164.55 and 288,074.12

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Solution

The fourth proportional to 528,577.70, 792,164.55 and 288,074.12 is: 431,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,577.70 : 792,164.55 = 288,074.12 : x
  2. Step 2: Convert to fraction form
    528,577.70/792,164.55 = 288,074.12/x
  3. Step 3: Cross multiply
    528,577.70x = 792,164.55 × 288,074.12
  4. Step 4: Simplify right side
    528,577.70x = 228,202,105,636.45
  5. Step 5: Solve for x
    x = 228,202,105,636.45/528,577.70
  6. Step 6: Final answer
    x = 431,728.59

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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.