Home / 1,028,413.80-1,542,620.70-429,175.80

Finding the Fourth Proportional to 1,028,413.80, 1,542,620.70 and 429,175.80

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Solution

The fourth proportional to 1,028,413.80, 1,542,620.70 and 429,175.80 is: 643,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,413.80 : 1,542,620.70 = 429,175.80 : x
  2. Step 2: Convert to fraction form
    1,028,413.80/1,542,620.70 = 429,175.80/x
  3. Step 3: Cross multiply
    1,028,413.80x = 1,542,620.70 × 429,175.80
  4. Step 4: Simplify right side
    1,028,413.80x = 662,055,473,019.06
  5. Step 5: Solve for x
    x = 662,055,473,019.06/1,028,413.80
  6. Step 6: Final answer
    x = 643,763.70

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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.