Home / 957,354.78-1,321,132.48-521,776.06

Finding the Fourth Proportional to 957,354.78, 1,321,132.48 and 521,776.06

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Solution

The fourth proportional to 957,354.78, 1,321,132.48 and 521,776.06 is: 720,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,354.78 : 1,321,132.48 = 521,776.06 : x
  2. Step 2: Convert to fraction form
    957,354.78/1,321,132.48 = 521,776.06/x
  3. Step 3: Cross multiply
    957,354.78x = 1,321,132.48 × 521,776.06
  4. Step 4: Simplify right side
    957,354.78x = 689,335,300,152.43
  5. Step 5: Solve for x
    x = 689,335,300,152.43/957,354.78
  6. Step 6: Final answer
    x = 720,041.63

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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.