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Finding the Fourth Proportional to 613,413.90, 921,462.21 and 437,054.22

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Solution

The fourth proportional to 613,413.90, 921,462.21 and 437,054.22 is: 656,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,413.90 : 921,462.21 = 437,054.22 : x
  2. Step 2: Convert to fraction form
    613,413.90/921,462.21 = 437,054.22/x
  3. Step 3: Cross multiply
    613,413.90x = 921,462.21 × 437,054.22
  4. Step 4: Simplify right side
    613,413.90x = 402,728,947,451.03
  5. Step 5: Solve for x
    x = 402,728,947,451.03/613,413.90
  6. Step 6: Final answer
    x = 656,537.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.