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Finding the Fourth Proportional to 576,690.60, 863,999.10 and 493,746.60

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Solution

The fourth proportional to 576,690.60, 863,999.10 and 493,746.60 is: 739,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,690.60 : 863,999.10 = 493,746.60 : x
  2. Step 2: Convert to fraction form
    576,690.60/863,999.10 = 493,746.60/x
  3. Step 3: Cross multiply
    576,690.60x = 863,999.10 × 493,746.60
  4. Step 4: Simplify right side
    576,690.60x = 426,596,618,028.06
  5. Step 5: Solve for x
    x = 426,596,618,028.06/576,690.60
  6. Step 6: Final answer
    x = 739,732.22

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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.