Home / 1,202,687.40-1,658,378.64-766,413.65

Finding the Fourth Proportional to 1,202,687.40, 1,658,378.64 and 766,413.65

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Solution

The fourth proportional to 1,202,687.40, 1,658,378.64 and 766,413.65 is: 1,056,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,687.40 : 1,658,378.64 = 766,413.65 : x
  2. Step 2: Convert to fraction form
    1,202,687.40/1,658,378.64 = 766,413.65/x
  3. Step 3: Cross multiply
    1,202,687.40x = 1,658,378.64 × 766,413.65
  4. Step 4: Simplify right side
    1,202,687.40x = 1,271,004,018,272.54
  5. Step 5: Solve for x
    x = 1,271,004,018,272.54/1,202,687.40
  6. Step 6: Final answer
    x = 1,056,803.30

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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.