Home / 1,007,700.87-1,390,563.41-554,991.87

Finding the Fourth Proportional to 1,007,700.87, 1,390,563.41 and 554,991.87

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Solution

The fourth proportional to 1,007,700.87, 1,390,563.41 and 554,991.87 is: 765,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,700.87 : 1,390,563.41 = 554,991.87 : x
  2. Step 2: Convert to fraction form
    1,007,700.87/1,390,563.41 = 554,991.87/x
  3. Step 3: Cross multiply
    1,007,700.87x = 1,390,563.41 × 554,991.87
  4. Step 4: Simplify right side
    1,007,700.87x = 771,751,384,494.52
  5. Step 5: Solve for x
    x = 771,751,384,494.52/1,007,700.87
  6. Step 6: Final answer
    x = 765,853.65

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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.