Home / 1,965,643.61-2,712,139.40-1,105,890.17

Finding the Fourth Proportional to 1,965,643.61, 2,712,139.40 and 1,105,890.17

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Solution

The fourth proportional to 1,965,643.61, 2,712,139.40 and 1,105,890.17 is: 1,525,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,643.61 : 2,712,139.40 = 1,105,890.17 : x
  2. Step 2: Convert to fraction form
    1,965,643.61/2,712,139.40 = 1,105,890.17/x
  3. Step 3: Cross multiply
    1,965,643.61x = 2,712,139.40 × 1,105,890.17
  4. Step 4: Simplify right side
    1,965,643.61x = 2,999,328,291,333.73
  5. Step 5: Solve for x
    x = 2,999,328,291,333.73/1,965,643.61
  6. Step 6: Final answer
    x = 1,525,875.94

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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.