Home / 1,228,587.82-1,695,459.61-684,758.65

Finding the Fourth Proportional to 1,228,587.82, 1,695,459.61 and 684,758.65

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Solution

The fourth proportional to 1,228,587.82, 1,695,459.61 and 684,758.65 is: 944,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,587.82 : 1,695,459.61 = 684,758.65 : x
  2. Step 2: Convert to fraction form
    1,228,587.82/1,695,459.61 = 684,758.65/x
  3. Step 3: Cross multiply
    1,228,587.82x = 1,695,459.61 × 684,758.65
  4. Step 4: Simplify right side
    1,228,587.82x = 1,160,980,630,290.43
  5. Step 5: Solve for x
    x = 1,160,980,630,290.43/1,228,587.82
  6. Step 6: Final answer
    x = 944,971.63

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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.