Home / 1,038,378.80-1,554,943.80-828,426.80

Finding the Fourth Proportional to 1,038,378.80, 1,554,943.80 and 828,426.80

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Solution

The fourth proportional to 1,038,378.80, 1,554,943.80 and 828,426.80 is: 1,240,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,378.80 : 1,554,943.80 = 828,426.80 : x
  2. Step 2: Convert to fraction form
    1,038,378.80/1,554,943.80 = 828,426.80/x
  3. Step 3: Cross multiply
    1,038,378.80x = 1,554,943.80 × 828,426.80
  4. Step 4: Simplify right side
    1,038,378.80x = 1,288,157,116,413.84
  5. Step 5: Solve for x
    x = 1,288,157,116,413.84/1,038,378.80
  6. Step 6: Final answer
    x = 1,240,546.43

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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.