Home / 1,792,635.40-2,689,428.30-781,323.40

Finding the Fourth Proportional to 1,792,635.40, 2,689,428.30 and 781,323.40

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Solution

The fourth proportional to 1,792,635.40, 2,689,428.30 and 781,323.40 is: 1,172,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,635.40 : 2,689,428.30 = 781,323.40 : x
  2. Step 2: Convert to fraction form
    1,792,635.40/2,689,428.30 = 781,323.40/x
  3. Step 3: Cross multiply
    1,792,635.40x = 2,689,428.30 × 781,323.40
  4. Step 4: Simplify right side
    1,792,635.40x = 2,101,313,263,412.22
  5. Step 5: Solve for x
    x = 2,101,313,263,412.22/1,792,635.40
  6. Step 6: Final answer
    x = 1,172,192.22

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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.