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Finding the Fourth Proportional to 610,413.70, 915,620.55 and 545,095.30

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Solution

The fourth proportional to 610,413.70, 915,620.55 and 545,095.30 is: 817,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,413.70 : 915,620.55 = 545,095.30 : x
  2. Step 2: Convert to fraction form
    610,413.70/915,620.55 = 545,095.30/x
  3. Step 3: Cross multiply
    610,413.70x = 915,620.55 × 545,095.30
  4. Step 4: Simplify right side
    610,413.70x = 499,100,458,388.42
  5. Step 5: Solve for x
    x = 499,100,458,388.42/610,413.70
  6. Step 6: Final answer
    x = 817,642.95

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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.