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Finding the Fourth Proportional to 657,803.60, 986,413.80 and 302,634.80

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Solution

The fourth proportional to 657,803.60, 986,413.80 and 302,634.80 is: 453,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,803.60 : 986,413.80 = 302,634.80 : x
  2. Step 2: Convert to fraction form
    657,803.60/986,413.80 = 302,634.80/x
  3. Step 3: Cross multiply
    657,803.60x = 986,413.80 × 302,634.80
  4. Step 4: Simplify right side
    657,803.60x = 298,523,143,080.24
  5. Step 5: Solve for x
    x = 298,523,143,080.24/657,803.60
  6. Step 6: Final answer
    x = 453,818.04

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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.