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Finding the Fourth Proportional to 528,425.76, 729,227.58 and 302,076.12

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Solution

The fourth proportional to 528,425.76, 729,227.58 and 302,076.12 is: 416,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,425.76 : 729,227.58 = 302,076.12 : x
  2. Step 2: Convert to fraction form
    528,425.76/729,227.58 = 302,076.12/x
  3. Step 3: Cross multiply
    528,425.76x = 729,227.58 × 302,076.12
  4. Step 4: Simplify right side
    528,425.76x = 220,282,237,963.39
  5. Step 5: Solve for x
    x = 220,282,237,963.39/528,425.76
  6. Step 6: Final answer
    x = 416,865.06

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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.