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Finding the Fourth Proportional to 526,391.80, 726,413.34 and 300,041.08

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Solution

The fourth proportional to 526,391.80, 726,413.34 and 300,041.08 is: 414,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,391.80 : 726,413.34 = 300,041.08 : x
  2. Step 2: Convert to fraction form
    526,391.80/726,413.34 = 300,041.08/x
  3. Step 3: Cross multiply
    526,391.80x = 726,413.34 × 300,041.08
  4. Step 4: Simplify right side
    526,391.80x = 217,953,843,060.01
  5. Step 5: Solve for x
    x = 217,953,843,060.01/526,391.80
  6. Step 6: Final answer
    x = 414,052.50

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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.