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Finding the Fourth Proportional to 528,240.20, 790,098.98 and 489,950.60

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Solution

The fourth proportional to 528,240.20, 790,098.98 and 489,950.60 is: 732,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,240.20 : 790,098.98 = 489,950.60 : x
  2. Step 2: Convert to fraction form
    528,240.20/790,098.98 = 489,950.60/x
  3. Step 3: Cross multiply
    528,240.20x = 790,098.98 × 489,950.60
  4. Step 4: Simplify right side
    528,240.20x = 387,109,462,910.14
  5. Step 5: Solve for x
    x = 387,109,462,910.14/528,240.20
  6. Step 6: Final answer
    x = 732,828.49

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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.