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Finding the Fourth Proportional to 604,210.91, 906,562.67 and 388,311.48

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Solution

The fourth proportional to 604,210.91, 906,562.67 and 388,311.48 is: 582,625.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,210.91 : 906,562.67 = 388,311.48 : x
  2. Step 2: Convert to fraction form
    604,210.91/906,562.67 = 388,311.48/x
  3. Step 3: Cross multiply
    604,210.91x = 906,562.67 × 388,311.48
  4. Step 4: Simplify right side
    604,210.91x = 352,028,690,158.89
  5. Step 5: Solve for x
    x = 352,028,690,158.89/604,210.91
  6. Step 6: Final answer
    x = 582,625.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.