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Finding the Fourth Proportional to 589,131.45, 812,789.51 and 374,319.45

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Solution

The fourth proportional to 589,131.45, 812,789.51 and 374,319.45 is: 516,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,131.45 : 812,789.51 = 374,319.45 : x
  2. Step 2: Convert to fraction form
    589,131.45/812,789.51 = 374,319.45/x
  3. Step 3: Cross multiply
    589,131.45x = 812,789.51 × 374,319.45
  4. Step 4: Simplify right side
    589,131.45x = 304,242,920,477.37
  5. Step 5: Solve for x
    x = 304,242,920,477.37/589,131.45
  6. Step 6: Final answer
    x = 516,426.21

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