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Finding the Fourth Proportional to 613,216.54, 919,978.10 and 603,045.36

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Solution

The fourth proportional to 613,216.54, 919,978.10 and 603,045.36 is: 904,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,216.54 : 919,978.10 = 603,045.36 : x
  2. Step 2: Convert to fraction form
    613,216.54/919,978.10 = 603,045.36/x
  3. Step 3: Cross multiply
    613,216.54x = 919,978.10 × 603,045.36
  4. Step 4: Simplify right side
    613,216.54x = 554,788,524,506.62
  5. Step 5: Solve for x
    x = 554,788,524,506.62/613,216.54
  6. Step 6: Final answer
    x = 904,718.79

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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.