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Finding the Fourth Proportional to 496,389.20, 744,583.80 and 417,657.20

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Solution

The fourth proportional to 496,389.20, 744,583.80 and 417,657.20 is: 626,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,389.20 : 744,583.80 = 417,657.20 : x
  2. Step 2: Convert to fraction form
    496,389.20/744,583.80 = 417,657.20/x
  3. Step 3: Cross multiply
    496,389.20x = 744,583.80 × 417,657.20
  4. Step 4: Simplify right side
    496,389.20x = 310,980,785,073.36
  5. Step 5: Solve for x
    x = 310,980,785,073.36/496,389.20
  6. Step 6: Final answer
    x = 626,485.80

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Similar ratio
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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.