Home / 1,248,413.80-1,869,452.70-686,813.80

Finding the Fourth Proportional to 1,248,413.80, 1,869,452.70 and 686,813.80

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Solution

The fourth proportional to 1,248,413.80, 1,869,452.70 and 686,813.80 is: 1,028,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,413.80 : 1,869,452.70 = 686,813.80 : x
  2. Step 2: Convert to fraction form
    1,248,413.80/1,869,452.70 = 686,813.80/x
  3. Step 3: Cross multiply
    1,248,413.80x = 1,869,452.70 × 686,813.80
  4. Step 4: Simplify right side
    1,248,413.80x = 1,283,965,912,807.26
  5. Step 5: Solve for x
    x = 1,283,965,912,807.26/1,248,413.80
  6. Step 6: Final answer
    x = 1,028,477.83

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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.