Home / 1,267,139.94-1,900,551.36-414,140.28

Finding the Fourth Proportional to 1,267,139.94, 1,900,551.36 and 414,140.28

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Solution

The fourth proportional to 1,267,139.94, 1,900,551.36 and 414,140.28 is: 621,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,139.94 : 1,900,551.36 = 414,140.28 : x
  2. Step 2: Convert to fraction form
    1,267,139.94/1,900,551.36 = 414,140.28/x
  3. Step 3: Cross multiply
    1,267,139.94x = 1,900,551.36 × 414,140.28
  4. Step 4: Simplify right side
    1,267,139.94x = 787,094,872,384.78
  5. Step 5: Solve for x
    x = 787,094,872,384.78/1,267,139.94
  6. Step 6: Final answer
    x = 621,158.60

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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.