Home / 1,385,275.75-1,911,661.92-773,437.88

Finding the Fourth Proportional to 1,385,275.75, 1,911,661.92 and 773,437.88

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Solution

The fourth proportional to 1,385,275.75, 1,911,661.92 and 773,437.88 is: 1,067,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,275.75 : 1,911,661.92 = 773,437.88 : x
  2. Step 2: Convert to fraction form
    1,385,275.75/1,911,661.92 = 773,437.88/x
  3. Step 3: Cross multiply
    1,385,275.75x = 1,911,661.92 × 773,437.88
  4. Step 4: Simplify right side
    1,385,275.75x = 1,478,551,747,460.68
  5. Step 5: Solve for x
    x = 1,478,551,747,460.68/1,385,275.75
  6. Step 6: Final answer
    x = 1,067,333.89

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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.