Home / 757,790.40-1,045,745.70-418,258.64

Finding the Fourth Proportional to 757,790.40, 1,045,745.70 and 418,258.64

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Solution

The fourth proportional to 757,790.40, 1,045,745.70 and 418,258.64 is: 577,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,790.40 : 1,045,745.70 = 418,258.64 : x
  2. Step 2: Convert to fraction form
    757,790.40/1,045,745.70 = 418,258.64/x
  3. Step 3: Cross multiply
    757,790.40x = 1,045,745.70 × 418,258.64
  4. Step 4: Simplify right side
    757,790.40x = 437,392,174,267.85
  5. Step 5: Solve for x
    x = 437,392,174,267.85/757,790.40
  6. Step 6: Final answer
    x = 577,194.13

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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.