Home / 957,364.30-1,321,145.58-521,785.56

Finding the Fourth Proportional to 957,364.30, 1,321,145.58 and 521,785.56

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Solution

The fourth proportional to 957,364.30, 1,321,145.58 and 521,785.56 is: 720,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,364.30 : 1,321,145.58 = 521,785.56 : x
  2. Step 2: Convert to fraction form
    957,364.30/1,321,145.58 = 521,785.56/x
  3. Step 3: Cross multiply
    957,364.30x = 1,321,145.58 × 521,785.56
  4. Step 4: Simplify right side
    957,364.30x = 689,354,686,301.83
  5. Step 5: Solve for x
    x = 689,354,686,301.83/957,364.30
  6. Step 6: Final answer
    x = 720,054.72

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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.