Home / 1,427,139.10-2,140,708.65-1,147,203.10

Finding the Fourth Proportional to 1,427,139.10, 2,140,708.65 and 1,147,203.10

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Solution

The fourth proportional to 1,427,139.10, 2,140,708.65 and 1,147,203.10 is: 1,720,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,139.10 : 2,140,708.65 = 1,147,203.10 : x
  2. Step 2: Convert to fraction form
    1,427,139.10/2,140,708.65 = 1,147,203.10/x
  3. Step 3: Cross multiply
    1,427,139.10x = 2,140,708.65 × 1,147,203.10
  4. Step 4: Simplify right side
    1,427,139.10x = 2,455,827,599,476.82
  5. Step 5: Solve for x
    x = 2,455,827,599,476.82/1,427,139.10
  6. Step 6: Final answer
    x = 1,720,804.65

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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.