Home / 1,423,981.13-2,136,321.68-426,709.13

Finding the Fourth Proportional to 1,423,981.13, 2,136,321.68 and 426,709.13

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Solution

The fourth proportional to 1,423,981.13, 2,136,321.68 and 426,709.13 is: 640,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,981.13 : 2,136,321.68 = 426,709.13 : x
  2. Step 2: Convert to fraction form
    1,423,981.13/2,136,321.68 = 426,709.13/x
  3. Step 3: Cross multiply
    1,423,981.13x = 2,136,321.68 × 426,709.13
  4. Step 4: Simplify right side
    1,423,981.13x = 911,587,952,657.78
  5. Step 5: Solve for x
    x = 911,587,952,657.78/1,423,981.13
  6. Step 6: Final answer
    x = 640,168.56

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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.