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Finding the Fourth Proportional to 617,413.63, 926,120.47 and 407,002.36

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Solution

The fourth proportional to 617,413.63, 926,120.47 and 407,002.36 is: 610,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,413.63 : 926,120.47 = 407,002.36 : x
  2. Step 2: Convert to fraction form
    617,413.63/926,120.47 = 407,002.36/x
  3. Step 3: Cross multiply
    617,413.63x = 926,120.47 × 407,002.36
  4. Step 4: Simplify right side
    617,413.63x = 376,933,216,934.31
  5. Step 5: Solve for x
    x = 376,933,216,934.31/617,413.63
  6. Step 6: Final answer
    x = 610,503.56

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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.