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Finding the Fourth Proportional to 857,413.60, 1,285,245.60 and 502,244.80

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Solution

The fourth proportional to 857,413.60, 1,285,245.60 and 502,244.80 is: 752,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,413.60 : 1,285,245.60 = 502,244.80 : x
  2. Step 2: Convert to fraction form
    857,413.60/1,285,245.60 = 502,244.80/x
  3. Step 3: Cross multiply
    857,413.60x = 1,285,245.60 × 502,244.80
  4. Step 4: Simplify right side
    857,413.60x = 645,507,919,322.88
  5. Step 5: Solve for x
    x = 645,507,919,322.88/857,413.60
  6. Step 6: Final answer
    x = 752,854.77

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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.