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Finding the Fourth Proportional to 660,893.07, 912,029.27 and 374,412.48

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Solution

The fourth proportional to 660,893.07, 912,029.27 and 374,412.48 is: 516,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,893.07 : 912,029.27 = 374,412.48 : x
  2. Step 2: Convert to fraction form
    660,893.07/912,029.27 = 374,412.48/x
  3. Step 3: Cross multiply
    660,893.07x = 912,029.27 × 374,412.48
  4. Step 4: Simplify right side
    660,893.07x = 341,475,137,627.19
  5. Step 5: Solve for x
    x = 341,475,137,627.19/660,893.07
  6. Step 6: Final answer
    x = 516,687.42

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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.