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Finding the Fourth Proportional to 1,664,629.74, 2,297,254.10 and 939,502.53

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Solution

The fourth proportional to 1,664,629.74, 2,297,254.10 and 939,502.53 is: 1,296,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,629.74 : 2,297,254.10 = 939,502.53 : x
  2. Step 2: Convert to fraction form
    1,664,629.74/2,297,254.10 = 939,502.53/x
  3. Step 3: Cross multiply
    1,664,629.74x = 2,297,254.10 × 939,502.53
  4. Step 4: Simplify right side
    1,664,629.74x = 2,158,276,034,305.36
  5. Step 5: Solve for x
    x = 2,158,276,034,305.36/1,664,629.74
  6. Step 6: Final answer
    x = 1,296,550.21

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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.