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Finding the Fourth Proportional to 720,754.88, 993,413.52 and 659,669.00

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Solution

The fourth proportional to 720,754.88, 993,413.52 and 659,669.00 is: 909,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,754.88 : 993,413.52 = 659,669.00 : x
  2. Step 2: Convert to fraction form
    720,754.88/993,413.52 = 659,669.00/x
  3. Step 3: Cross multiply
    720,754.88x = 993,413.52 × 659,669.00
  4. Step 4: Simplify right side
    720,754.88x = 655,324,098,357.81
  5. Step 5: Solve for x
    x = 655,324,098,357.81/720,754.88
  6. Step 6: Final answer
    x = 909,219.10

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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.