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Finding the Fourth Proportional to 679,579.68, 937,794.74 and 373,637.87

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Solution

The fourth proportional to 679,579.68, 937,794.74 and 373,637.87 is: 515,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,579.68 : 937,794.74 = 373,637.87 : x
  2. Step 2: Convert to fraction form
    679,579.68/937,794.74 = 373,637.87/x
  3. Step 3: Cross multiply
    679,579.68x = 937,794.74 × 373,637.87
  4. Step 4: Simplify right side
    679,579.68x = 350,395,629,150.80
  5. Step 5: Solve for x
    x = 350,395,629,150.80/679,579.68
  6. Step 6: Final answer
    x = 515,606.40

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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.