Home / 1,138,821-1,571,591.66-679,975.66

Finding the Fourth Proportional to 1,138,821, 1,571,591.66 and 679,975.66

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Solution

The fourth proportional to 1,138,821, 1,571,591.66 and 679,975.66 is: 938,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,821 : 1,571,591.66 = 679,975.66 : x
  2. Step 2: Convert to fraction form
    1,138,821/1,571,591.66 = 679,975.66/x
  3. Step 3: Cross multiply
    1,138,821x = 1,571,591.66 × 679,975.66
  4. Step 4: Simplify right side
    1,138,821x = 1,068,644,076,259.00
  5. Step 5: Solve for x
    x = 1,068,644,076,259.00/1,138,821
  6. Step 6: Final answer
    x = 938,377.56

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1.5x scale

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.