Home / 559,949.20-772,733.52-305,304.64

Finding the Fourth Proportional to 559,949.20, 772,733.52 and 305,304.64

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Solution

The fourth proportional to 559,949.20, 772,733.52 and 305,304.64 is: 421,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,949.20 : 772,733.52 = 305,304.64 : x
  2. Step 2: Convert to fraction form
    559,949.20/772,733.52 = 305,304.64/x
  3. Step 3: Cross multiply
    559,949.20x = 772,733.52 × 305,304.64
  4. Step 4: Simplify right side
    559,949.20x = 235,919,129,139.53
  5. Step 5: Solve for x
    x = 235,919,129,139.53/559,949.20
  6. Step 6: Final answer
    x = 421,322.38

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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.