Home / 1,087,767.71-1,501,031.43-628,911.72

Finding the Fourth Proportional to 1,087,767.71, 1,501,031.43 and 628,911.72

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Solution

The fourth proportional to 1,087,767.71, 1,501,031.43 and 628,911.72 is: 867,847.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,767.71 : 1,501,031.43 = 628,911.72 : x
  2. Step 2: Convert to fraction form
    1,087,767.71/1,501,031.43 = 628,911.72/x
  3. Step 3: Cross multiply
    1,087,767.71x = 1,501,031.43 × 628,911.72
  4. Step 4: Simplify right side
    1,087,767.71x = 944,016,252,424.90
  5. Step 5: Solve for x
    x = 944,016,252,424.90/1,087,767.71
  6. Step 6: Final answer
    x = 867,847.29

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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.