Home / 1,385,717.86-1,912,270.46-773,864.15

Finding the Fourth Proportional to 1,385,717.86, 1,912,270.46 and 773,864.15

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Solution

The fourth proportional to 1,385,717.86, 1,912,270.46 and 773,864.15 is: 1,067,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,717.86 : 1,912,270.46 = 773,864.15 : x
  2. Step 2: Convert to fraction form
    1,385,717.86/1,912,270.46 = 773,864.15/x
  3. Step 3: Cross multiply
    1,385,717.86x = 1,912,270.46 × 773,864.15
  4. Step 4: Simplify right side
    1,385,717.86x = 1,479,837,550,228.69
  5. Step 5: Solve for x
    x = 1,479,837,550,228.69/1,385,717.86
  6. Step 6: Final answer
    x = 1,067,921.25

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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.