Home / 559,638.12-772,278.07-304,983.84

Finding the Fourth Proportional to 559,638.12, 772,278.07 and 304,983.84

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Solution

The fourth proportional to 559,638.12, 772,278.07 and 304,983.84 is: 420,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,638.12 : 772,278.07 = 304,983.84 : x
  2. Step 2: Convert to fraction form
    559,638.12/772,278.07 = 304,983.84/x
  3. Step 3: Cross multiply
    559,638.12x = 772,278.07 × 304,983.84
  4. Step 4: Simplify right side
    559,638.12x = 235,532,331,336.39
  5. Step 5: Solve for x
    x = 235,532,331,336.39/559,638.12
  6. Step 6: Final answer
    x = 420,865.42

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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.