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Finding the Fourth Proportional to 526,331.60, 788,460.60 and 489,006.80

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Solution

The fourth proportional to 526,331.60, 788,460.60 and 489,006.80 is: 732,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,331.60 : 788,460.60 = 489,006.80 : x
  2. Step 2: Convert to fraction form
    526,331.60/788,460.60 = 489,006.80/x
  3. Step 3: Cross multiply
    526,331.60x = 788,460.60 × 489,006.80
  4. Step 4: Simplify right side
    526,331.60x = 385,562,594,932.08
  5. Step 5: Solve for x
    x = 385,562,594,932.08/526,331.60
  6. Step 6: Final answer
    x = 732,546.92

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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.