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Finding the Fourth Proportional to 528,027.92, 728,412.52 and 377,212.40

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Solution

The fourth proportional to 528,027.92, 728,412.52 and 377,212.40 is: 520,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,027.92 : 728,412.52 = 377,212.40 : x
  2. Step 2: Convert to fraction form
    528,027.92/728,412.52 = 377,212.40/x
  3. Step 3: Cross multiply
    528,027.92x = 728,412.52 × 377,212.40
  4. Step 4: Simplify right side
    528,027.92x = 274,766,234,859.25
  5. Step 5: Solve for x
    x = 274,766,234,859.25/528,027.92
  6. Step 6: Final answer
    x = 520,363.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.