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Finding the Fourth Proportional to 559,923.30, 772,413.30 and 355,641.03

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Solution

The fourth proportional to 559,923.30, 772,413.30 and 355,641.03 is: 490,606.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,923.30 : 772,413.30 = 355,641.03 : x
  2. Step 2: Convert to fraction form
    559,923.30/772,413.30 = 355,641.03/x
  3. Step 3: Cross multiply
    559,923.30x = 772,413.30 × 355,641.03
  4. Step 4: Simplify right side
    559,923.30x = 274,701,861,597.70
  5. Step 5: Solve for x
    x = 274,701,861,597.70/559,923.30
  6. Step 6: Final answer
    x = 490,606.23

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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.