Home / 1,209,115.45-1,668,605.18-665,252.82

Finding the Fourth Proportional to 1,209,115.45, 1,668,605.18 and 665,252.82

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Solution

The fourth proportional to 1,209,115.45, 1,668,605.18 and 665,252.82 is: 918,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,115.45 : 1,668,605.18 = 665,252.82 : x
  2. Step 2: Convert to fraction form
    1,209,115.45/1,668,605.18 = 665,252.82/x
  3. Step 3: Cross multiply
    1,209,115.45x = 1,668,605.18 × 665,252.82
  4. Step 4: Simplify right side
    1,209,115.45x = 1,110,044,293,118.58
  5. Step 5: Solve for x
    x = 1,110,044,293,118.58/1,209,115.45
  6. Step 6: Final answer
    x = 918,063.12

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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.