Home / 1,328,139.51-1,832,603.70-747,282.03

Finding the Fourth Proportional to 1,328,139.51, 1,832,603.70 and 747,282.03

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Solution

The fourth proportional to 1,328,139.51, 1,832,603.70 and 747,282.03 is: 1,031,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,139.51 : 1,832,603.70 = 747,282.03 : x
  2. Step 2: Convert to fraction form
    1,328,139.51/1,832,603.70 = 747,282.03/x
  3. Step 3: Cross multiply
    1,328,139.51x = 1,832,603.70 × 747,282.03
  4. Step 4: Simplify right side
    1,328,139.51x = 1,369,471,813,121.51
  5. Step 5: Solve for x
    x = 1,369,471,813,121.51/1,328,139.51
  6. Step 6: Final answer
    x = 1,031,120.45

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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.