Home / 1,210,040.90-1,815,061.35-926,605.70

Finding the Fourth Proportional to 1,210,040.90, 1,815,061.35 and 926,605.70

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Solution

The fourth proportional to 1,210,040.90, 1,815,061.35 and 926,605.70 is: 1,389,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,040.90 : 1,815,061.35 = 926,605.70 : x
  2. Step 2: Convert to fraction form
    1,210,040.90/1,815,061.35 = 926,605.70/x
  3. Step 3: Cross multiply
    1,210,040.90x = 1,815,061.35 × 926,605.70
  4. Step 4: Simplify right side
    1,210,040.90x = 1,681,846,192,759.70
  5. Step 5: Solve for x
    x = 1,681,846,192,759.70/1,210,040.90
  6. Step 6: Final answer
    x = 1,389,908.55

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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.