Home / 1,211,250.80-1,820,812.80-1,038,040.40

Finding the Fourth Proportional to 1,211,250.80, 1,820,812.80 and 1,038,040.40

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Solution

The fourth proportional to 1,211,250.80, 1,820,812.80 and 1,038,040.40 is: 1,560,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,250.80 : 1,820,812.80 = 1,038,040.40 : x
  2. Step 2: Convert to fraction form
    1,211,250.80/1,820,812.80 = 1,038,040.40/x
  3. Step 3: Cross multiply
    1,211,250.80x = 1,820,812.80 × 1,038,040.40
  4. Step 4: Simplify right side
    1,211,250.80x = 1,890,077,247,237.12
  5. Step 5: Solve for x
    x = 1,890,077,247,237.12/1,211,250.80
  6. Step 6: Final answer
    x = 1,560,434.26

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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.