Home / 975,103.72-1,345,635.79-545,383.87

Finding the Fourth Proportional to 975,103.72, 1,345,635.79 and 545,383.87

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Solution

The fourth proportional to 975,103.72, 1,345,635.79 and 545,383.87 is: 752,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,103.72 : 1,345,635.79 = 545,383.87 : x
  2. Step 2: Convert to fraction form
    975,103.72/1,345,635.79 = 545,383.87/x
  3. Step 3: Cross multiply
    975,103.72x = 1,345,635.79 × 545,383.87
  4. Step 4: Simplify right side
    975,103.72x = 733,888,050,033.16
  5. Step 5: Solve for x
    x = 733,888,050,033.16/975,103.72
  6. Step 6: Final answer
    x = 752,625.63

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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.