Home / 1,965,643.57-2,712,139.36-1,105,890.13

Finding the Fourth Proportional to 1,965,643.57, 2,712,139.36 and 1,105,890.13

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Solution

The fourth proportional to 1,965,643.57, 2,712,139.36 and 1,105,890.13 is: 1,525,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,643.57 : 2,712,139.36 = 1,105,890.13 : x
  2. Step 2: Convert to fraction form
    1,965,643.57/2,712,139.36 = 1,105,890.13/x
  3. Step 3: Cross multiply
    1,965,643.57x = 2,712,139.36 × 1,105,890.13
  4. Step 4: Simplify right side
    1,965,643.57x = 2,999,328,149,408.52
  5. Step 5: Solve for x
    x = 2,999,328,149,408.52/1,965,643.57
  6. Step 6: Final answer
    x = 1,525,875.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.