Home / 1,070,228.41-1,476,961.32-640,425.80

Finding the Fourth Proportional to 1,070,228.41, 1,476,961.32 and 640,425.80

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Solution

The fourth proportional to 1,070,228.41, 1,476,961.32 and 640,425.80 is: 883,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,228.41 : 1,476,961.32 = 640,425.80 : x
  2. Step 2: Convert to fraction form
    1,070,228.41/1,476,961.32 = 640,425.80/x
  3. Step 3: Cross multiply
    1,070,228.41x = 1,476,961.32 × 640,425.80
  4. Step 4: Simplify right side
    1,070,228.41x = 945,884,141,024.06
  5. Step 5: Solve for x
    x = 945,884,141,024.06/1,070,228.41
  6. Step 6: Final answer
    x = 883,815.21

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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.