Home / 1,377,128.61-1,900,316.44-765,242.59

Finding the Fourth Proportional to 1,377,128.61, 1,900,316.44 and 765,242.59

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Solution

The fourth proportional to 1,377,128.61, 1,900,316.44 and 765,242.59 is: 1,055,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,128.61 : 1,900,316.44 = 765,242.59 : x
  2. Step 2: Convert to fraction form
    1,377,128.61/1,900,316.44 = 765,242.59/x
  3. Step 3: Cross multiply
    1,377,128.61x = 1,900,316.44 × 765,242.59
  4. Step 4: Simplify right side
    1,377,128.61x = 1,454,203,074,365.18
  5. Step 5: Solve for x
    x = 1,454,203,074,365.18/1,377,128.61
  6. Step 6: Final answer
    x = 1,055,967.51

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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.