Home / 957,661.88-1,321,539.38-522,070.21

Finding the Fourth Proportional to 957,661.88, 1,321,539.38 and 522,070.21

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Solution

The fourth proportional to 957,661.88, 1,321,539.38 and 522,070.21 is: 720,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,661.88 : 1,321,539.38 = 522,070.21 : x
  2. Step 2: Convert to fraction form
    957,661.88/1,321,539.38 = 522,070.21/x
  3. Step 3: Cross multiply
    957,661.88x = 1,321,539.38 × 522,070.21
  4. Step 4: Simplify right side
    957,661.88x = 689,936,336,337.35
  5. Step 5: Solve for x
    x = 689,936,336,337.35/957,661.88
  6. Step 6: Final answer
    x = 720,438.34

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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.