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Finding the Fourth Proportional to 547,501.73, 755,477.71 and 305,753.47

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Solution

The fourth proportional to 547,501.73, 755,477.71 and 305,753.47 is: 421,898.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,501.73 : 755,477.71 = 305,753.47 : x
  2. Step 2: Convert to fraction form
    547,501.73/755,477.71 = 305,753.47/x
  3. Step 3: Cross multiply
    547,501.73x = 755,477.71 × 305,753.47
  4. Step 4: Simplify right side
    547,501.73x = 230,989,928,687.08
  5. Step 5: Solve for x
    x = 230,989,928,687.08/547,501.73
  6. Step 6: Final answer
    x = 421,898.08

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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.