Home / 975,249.87-1,345,256.32-644,107.83

Finding the Fourth Proportional to 975,249.87, 1,345,256.32 and 644,107.83

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Solution

The fourth proportional to 975,249.87, 1,345,256.32 and 644,107.83 is: 888,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,249.87 : 1,345,256.32 = 644,107.83 : x
  2. Step 2: Convert to fraction form
    975,249.87/1,345,256.32 = 644,107.83/x
  3. Step 3: Cross multiply
    975,249.87x = 1,345,256.32 × 644,107.83
  4. Step 4: Simplify right side
    975,249.87x = 866,490,129,068.99
  5. Step 5: Solve for x
    x = 866,490,129,068.99/975,249.87
  6. Step 6: Final answer
    x = 888,480.13

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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.