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Finding the Fourth Proportional to 548,617.15, 819,280.27 and 542,679.45

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Solution

The fourth proportional to 548,617.15, 819,280.27 and 542,679.45 is: 810,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,617.15 : 819,280.27 = 542,679.45 : x
  2. Step 2: Convert to fraction form
    548,617.15/819,280.27 = 542,679.45/x
  3. Step 3: Cross multiply
    548,617.15x = 819,280.27 × 542,679.45
  4. Step 4: Simplify right side
    548,617.15x = 444,606,563,925.50
  5. Step 5: Solve for x
    x = 444,606,563,925.50/548,617.15
  6. Step 6: Final answer
    x = 810,413.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.