Home / 1,404,200.70-2,106,301.05-1,390,203.90

Finding the Fourth Proportional to 1,404,200.70, 2,106,301.05 and 1,390,203.90

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Solution

The fourth proportional to 1,404,200.70, 2,106,301.05 and 1,390,203.90 is: 2,085,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,200.70 : 2,106,301.05 = 1,390,203.90 : x
  2. Step 2: Convert to fraction form
    1,404,200.70/2,106,301.05 = 1,390,203.90/x
  3. Step 3: Cross multiply
    1,404,200.70x = 2,106,301.05 × 1,390,203.90
  4. Step 4: Simplify right side
    1,404,200.70x = 2,928,187,934,284.10
  5. Step 5: Solve for x
    x = 2,928,187,934,284.10/1,404,200.70
  6. Step 6: Final answer
    x = 2,085,305.85

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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.