Home / 559,963.84-772,733.28-305,320

Finding the Fourth Proportional to 559,963.84, 772,733.28 and 305,320

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Solution

The fourth proportional to 559,963.84, 772,733.28 and 305,320 is: 421,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,963.84 : 772,733.28 = 305,320 : x
  2. Step 2: Convert to fraction form
    559,963.84/772,733.28 = 305,320/x
  3. Step 3: Cross multiply
    559,963.84x = 772,733.28 × 305,320
  4. Step 4: Simplify right side
    559,963.84x = 235,930,925,049.60
  5. Step 5: Solve for x
    x = 235,930,925,049.60/559,963.84
  6. Step 6: Final answer
    x = 421,332.43

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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.