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Finding the Fourth Proportional to 617,669.37, 926,663.79 and 361,718.10

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Solution

The fourth proportional to 617,669.37, 926,663.79 and 361,718.10 is: 542,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,669.37 : 926,663.79 = 361,718.10 : x
  2. Step 2: Convert to fraction form
    617,669.37/926,663.79 = 361,718.10/x
  3. Step 3: Cross multiply
    617,669.37x = 926,663.79 × 361,718.10
  4. Step 4: Simplify right side
    617,669.37x = 335,191,065,457.60
  5. Step 5: Solve for x
    x = 335,191,065,457.60/617,669.37
  6. Step 6: Final answer
    x = 542,670.69

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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.