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Finding the Fourth Proportional to 660,953.88, 991,468.44 and 187,602

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Solution

The fourth proportional to 660,953.88, 991,468.44 and 187,602 is: 281,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,953.88 : 991,468.44 = 187,602 : x
  2. Step 2: Convert to fraction form
    660,953.88/991,468.44 = 187,602/x
  3. Step 3: Cross multiply
    660,953.88x = 991,468.44 × 187,602
  4. Step 4: Simplify right side
    660,953.88x = 186,001,462,280.88
  5. Step 5: Solve for x
    x = 186,001,462,280.88/660,953.88
  6. Step 6: Final answer
    x = 281,413.68

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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.