Home / 975,249.11-1,345,255.29-644,107.07

Finding the Fourth Proportional to 975,249.11, 1,345,255.29 and 644,107.07

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Solution

The fourth proportional to 975,249.11, 1,345,255.29 and 644,107.07 is: 888,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,249.11 : 1,345,255.29 = 644,107.07 : x
  2. Step 2: Convert to fraction form
    975,249.11/1,345,255.29 = 644,107.07/x
  3. Step 3: Cross multiply
    975,249.11x = 1,345,255.29 × 644,107.07
  4. Step 4: Simplify right side
    975,249.11x = 866,488,446,607.04
  5. Step 5: Solve for x
    x = 866,488,446,607.04/975,249.11
  6. Step 6: Final answer
    x = 888,479.09

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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.