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Finding the Fourth Proportional to 802,487.40, 1,107,550.50 and 462,889.32

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Solution

The fourth proportional to 802,487.40, 1,107,550.50 and 462,889.32 is: 638,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,487.40 : 1,107,550.50 = 462,889.32 : x
  2. Step 2: Convert to fraction form
    802,487.40/1,107,550.50 = 462,889.32/x
  3. Step 3: Cross multiply
    802,487.40x = 1,107,550.50 × 462,889.32
  4. Step 4: Simplify right side
    802,487.40x = 512,673,297,810.66
  5. Step 5: Solve for x
    x = 512,673,297,810.66/802,487.40
  6. Step 6: Final answer
    x = 638,855.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.