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Finding the Fourth Proportional to 493,876.40, 740,814.60 and 486,003.20

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Solution

The fourth proportional to 493,876.40, 740,814.60 and 486,003.20 is: 729,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,876.40 : 740,814.60 = 486,003.20 : x
  2. Step 2: Convert to fraction form
    493,876.40/740,814.60 = 486,003.20/x
  3. Step 3: Cross multiply
    493,876.40x = 740,814.60 × 486,003.20
  4. Step 4: Simplify right side
    493,876.40x = 360,038,266,206.72
  5. Step 5: Solve for x
    x = 360,038,266,206.72/493,876.40
  6. Step 6: Final answer
    x = 729,004.80

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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.