Home / 1,087,031.84-1,500,147.08-628,131.20

Finding the Fourth Proportional to 1,087,031.84, 1,500,147.08 and 628,131.20

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Solution

The fourth proportional to 1,087,031.84, 1,500,147.08 and 628,131.20 is: 866,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,031.84 : 1,500,147.08 = 628,131.20 : x
  2. Step 2: Convert to fraction form
    1,087,031.84/1,500,147.08 = 628,131.20/x
  3. Step 3: Cross multiply
    1,087,031.84x = 1,500,147.08 × 628,131.20
  4. Step 4: Simplify right side
    1,087,031.84x = 942,289,174,895.51
  5. Step 5: Solve for x
    x = 942,289,174,895.51/1,087,031.84
  6. Step 6: Final answer
    x = 866,845.98

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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.