Home / 930,137.10-1,395,400.05-299,114.70

Finding the Fourth Proportional to 930,137.10, 1,395,400.05 and 299,114.70

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Solution

The fourth proportional to 930,137.10, 1,395,400.05 and 299,114.70 is: 448,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,137.10 : 1,395,400.05 = 299,114.70 : x
  2. Step 2: Convert to fraction form
    930,137.10/1,395,400.05 = 299,114.70/x
  3. Step 3: Cross multiply
    930,137.10x = 1,395,400.05 × 299,114.70
  4. Step 4: Simplify right side
    930,137.10x = 417,384,667,335.74
  5. Step 5: Solve for x
    x = 417,384,667,335.74/930,137.10
  6. Step 6: Final answer
    x = 448,734.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.