Home / 1,440,256.07-2,160,965.03-640,990.95

Finding the Fourth Proportional to 1,440,256.07, 2,160,965.03 and 640,990.95

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Solution

The fourth proportional to 1,440,256.07, 2,160,965.03 and 640,990.95 is: 961,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,256.07 : 2,160,965.03 = 640,990.95 : x
  2. Step 2: Convert to fraction form
    1,440,256.07/2,160,965.03 = 640,990.95/x
  3. Step 3: Cross multiply
    1,440,256.07x = 2,160,965.03 × 640,990.95
  4. Step 4: Simplify right side
    1,440,256.07x = 1,385,159,027,496.48
  5. Step 5: Solve for x
    x = 1,385,159,027,496.48/1,440,256.07
  6. Step 6: Final answer
    x = 961,744.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.