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Finding the Fourth Proportional to 761,633, 1,051,053.54 and 422,123.12

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Solution

The fourth proportional to 761,633, 1,051,053.54 and 422,123.12 is: 582,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,633 : 1,051,053.54 = 422,123.12 : x
  2. Step 2: Convert to fraction form
    761,633/1,051,053.54 = 422,123.12/x
  3. Step 3: Cross multiply
    761,633x = 1,051,053.54 × 422,123.12
  4. Step 4: Simplify right side
    761,633x = 443,673,999,591.85
  5. Step 5: Solve for x
    x = 443,673,999,591.85/761,633
  6. Step 6: Final answer
    x = 582,529.91

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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.