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Finding the Fourth Proportional to 500,298.48, 690,413.04 and 270,858.18

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Solution

The fourth proportional to 500,298.48, 690,413.04 and 270,858.18 is: 373,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,298.48 : 690,413.04 = 270,858.18 : x
  2. Step 2: Convert to fraction form
    500,298.48/690,413.04 = 270,858.18/x
  3. Step 3: Cross multiply
    500,298.48x = 690,413.04 × 270,858.18
  4. Step 4: Simplify right side
    500,298.48x = 187,004,019,462.67
  5. Step 5: Solve for x
    x = 187,004,019,462.67/500,298.48
  6. Step 6: Final answer
    x = 373,784.90

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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.