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Finding the Fourth Proportional to 640,040.22, 960,110.01 and 190,726.74

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Solution

The fourth proportional to 640,040.22, 960,110.01 and 190,726.74 is: 286,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,040.22 : 960,110.01 = 190,726.74 : x
  2. Step 2: Convert to fraction form
    640,040.22/960,110.01 = 190,726.74/x
  3. Step 3: Cross multiply
    640,040.22x = 960,110.01 × 190,726.74
  4. Step 4: Simplify right side
    640,040.22x = 183,118,652,248.67
  5. Step 5: Solve for x
    x = 183,118,652,248.67/640,040.22
  6. Step 6: Final answer
    x = 286,104.91

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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.