Home / 1,328,138.51-1,832,602.32-747,281.03

Finding the Fourth Proportional to 1,328,138.51, 1,832,602.32 and 747,281.03

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Solution

The fourth proportional to 1,328,138.51, 1,832,602.32 and 747,281.03 is: 1,031,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,138.51 : 1,832,602.32 = 747,281.03 : x
  2. Step 2: Convert to fraction form
    1,328,138.51/1,832,602.32 = 747,281.03/x
  3. Step 3: Cross multiply
    1,328,138.51x = 1,832,602.32 × 747,281.03
  4. Step 4: Simplify right side
    1,328,138.51x = 1,369,468,940,106.98
  5. Step 5: Solve for x
    x = 1,369,468,940,106.98/1,328,138.51
  6. Step 6: Final answer
    x = 1,031,119.07

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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.