Home / 1,377,036.86-1,900,272.83-765,173.79

Finding the Fourth Proportional to 1,377,036.86, 1,900,272.83 and 765,173.79

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Solution

The fourth proportional to 1,377,036.86, 1,900,272.83 and 765,173.79 is: 1,055,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,036.86 : 1,900,272.83 = 765,173.79 : x
  2. Step 2: Convert to fraction form
    1,377,036.86/1,900,272.83 = 765,173.79/x
  3. Step 3: Cross multiply
    1,377,036.86x = 1,900,272.83 × 765,173.79
  4. Step 4: Simplify right side
    1,377,036.86x = 1,454,038,959,539.26
  5. Step 5: Solve for x
    x = 1,454,038,959,539.26/1,377,036.86
  6. Step 6: Final answer
    x = 1,055,918.70

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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.