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Finding the Fourth Proportional to 605,411.10, 908,116.65 and 540,092.70

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Solution

The fourth proportional to 605,411.10, 908,116.65 and 540,092.70 is: 810,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,411.10 : 908,116.65 = 540,092.70 : x
  2. Step 2: Convert to fraction form
    605,411.10/908,116.65 = 540,092.70/x
  3. Step 3: Cross multiply
    605,411.10x = 908,116.65 × 540,092.70
  4. Step 4: Simplify right side
    605,411.10x = 490,467,173,413.46
  5. Step 5: Solve for x
    x = 490,467,173,413.46/605,411.10
  6. Step 6: Final answer
    x = 810,139.05

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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.