Home / 1,440,490.43-1,987,706.25-859,605.92

Finding the Fourth Proportional to 1,440,490.43, 1,987,706.25 and 859,605.92

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Solution

The fourth proportional to 1,440,490.43, 1,987,706.25 and 859,605.92 is: 1,186,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,490.43 : 1,987,706.25 = 859,605.92 : x
  2. Step 2: Convert to fraction form
    1,440,490.43/1,987,706.25 = 859,605.92/x
  3. Step 3: Cross multiply
    1,440,490.43x = 1,987,706.25 × 859,605.92
  4. Step 4: Simplify right side
    1,440,490.43x = 1,708,644,049,782.47
  5. Step 5: Solve for x
    x = 1,708,644,049,782.47/1,440,490.43
  6. Step 6: Final answer
    x = 1,186,154.40

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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.