Home / 709,849.54-979,579.02-403,919.02

Finding the Fourth Proportional to 709,849.54, 979,579.02 and 403,919.02

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Solution

The fourth proportional to 709,849.54, 979,579.02 and 403,919.02 is: 557,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,849.54 : 979,579.02 = 403,919.02 : x
  2. Step 2: Convert to fraction form
    709,849.54/979,579.02 = 403,919.02/x
  3. Step 3: Cross multiply
    709,849.54x = 979,579.02 × 403,919.02
  4. Step 4: Simplify right side
    709,849.54x = 395,670,597,770.96
  5. Step 5: Solve for x
    x = 395,670,597,770.96/709,849.54
  6. Step 6: Final answer
    x = 557,400.65

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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.