Home / 998,851.65-1,378,413.40-539,966.50

Finding the Fourth Proportional to 998,851.65, 1,378,413.40 and 539,966.50

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Solution

The fourth proportional to 998,851.65, 1,378,413.40 and 539,966.50 is: 745,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,851.65 : 1,378,413.40 = 539,966.50 : x
  2. Step 2: Convert to fraction form
    998,851.65/1,378,413.40 = 539,966.50/x
  3. Step 3: Cross multiply
    998,851.65x = 1,378,413.40 × 539,966.50
  4. Step 4: Simplify right side
    998,851.65x = 744,297,063,121.16
  5. Step 5: Solve for x
    x = 744,297,063,121.16/998,851.65
  6. Step 6: Final answer
    x = 745,152.76

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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.