Home / 559,694.22-772,329.18-311,288.64

Finding the Fourth Proportional to 559,694.22, 772,329.18 and 311,288.64

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Solution

The fourth proportional to 559,694.22, 772,329.18 and 311,288.64 is: 429,551.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,694.22 : 772,329.18 = 311,288.64 : x
  2. Step 2: Convert to fraction form
    559,694.22/772,329.18 = 311,288.64/x
  3. Step 3: Cross multiply
    559,694.22x = 772,329.18 × 311,288.64
  4. Step 4: Simplify right side
    559,694.22x = 240,417,300,074.52
  5. Step 5: Solve for x
    x = 240,417,300,074.52/559,694.22
  6. Step 6: Final answer
    x = 429,551.16

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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.