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Finding the Fourth Proportional to 540,115.04, 745,373.81 and 298,413.20

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Solution

The fourth proportional to 540,115.04, 745,373.81 and 298,413.20 is: 411,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,115.04 : 745,373.81 = 298,413.20 : x
  2. Step 2: Convert to fraction form
    540,115.04/745,373.81 = 298,413.20/x
  3. Step 3: Cross multiply
    540,115.04x = 745,373.81 × 298,413.20
  4. Step 4: Simplify right side
    540,115.04x = 222,429,383,838.29
  5. Step 5: Solve for x
    x = 222,429,383,838.29/540,115.04
  6. Step 6: Final answer
    x = 411,818.53

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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.