Home / 1,423,640.32-2,134,838.38-426,135.04

Finding the Fourth Proportional to 1,423,640.32, 2,134,838.38 and 426,135.04

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Solution

The fourth proportional to 1,423,640.32, 2,134,838.38 and 426,135.04 is: 639,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,640.32 : 2,134,838.38 = 426,135.04 : x
  2. Step 2: Convert to fraction form
    1,423,640.32/2,134,838.38 = 426,135.04/x
  3. Step 3: Cross multiply
    1,423,640.32x = 2,134,838.38 × 426,135.04
  4. Step 4: Simplify right side
    1,423,640.32x = 909,729,438,454.84
  5. Step 5: Solve for x
    x = 909,729,438,454.84/1,423,640.32
  6. Step 6: Final answer
    x = 639,016.35

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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.