Home / 1,353,443.88-1,866,907.62-870,638.44

Finding the Fourth Proportional to 1,353,443.88, 1,866,907.62 and 870,638.44

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Solution

The fourth proportional to 1,353,443.88, 1,866,907.62 and 870,638.44 is: 1,200,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,443.88 : 1,866,907.62 = 870,638.44 : x
  2. Step 2: Convert to fraction form
    1,353,443.88/1,866,907.62 = 870,638.44/x
  3. Step 3: Cross multiply
    1,353,443.88x = 1,866,907.62 × 870,638.44
  4. Step 4: Simplify right side
    1,353,443.88x = 1,625,401,537,900.91
  5. Step 5: Solve for x
    x = 1,625,401,537,900.91/1,353,443.88
  6. Step 6: Final answer
    x = 1,200,937.52

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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.