Home / 419,140.10-625,667.08-387,916.22

Finding the Fourth Proportional to 419,140.10, 625,667.08 and 387,916.22

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Solution

The fourth proportional to 419,140.10, 625,667.08 and 387,916.22 is: 579,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,140.10 : 625,667.08 = 387,916.22 : x
  2. Step 2: Convert to fraction form
    419,140.10/625,667.08 = 387,916.22/x
  3. Step 3: Cross multiply
    419,140.10x = 625,667.08 × 387,916.22
  4. Step 4: Simplify right side
    419,140.10x = 242,706,408,652.04
  5. Step 5: Solve for x
    x = 242,706,408,652.04/419,140.10
  6. Step 6: Final answer
    x = 579,057.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.