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Finding the Fourth Proportional to 540,149.28, 745,413.81 and 298,437.42

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Solution

The fourth proportional to 540,149.28, 745,413.81 and 298,437.42 is: 411,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,149.28 : 745,413.81 = 298,437.42 : x
  2. Step 2: Convert to fraction form
    540,149.28/745,413.81 = 298,437.42/x
  3. Step 3: Cross multiply
    540,149.28x = 745,413.81 × 298,437.42
  4. Step 4: Simplify right side
    540,149.28x = 222,459,374,288.77
  5. Step 5: Solve for x
    x = 222,459,374,288.77/540,149.28
  6. Step 6: Final answer
    x = 411,847.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.