Home / 909,143.70-1,363,496.85-278,062.98

Finding the Fourth Proportional to 909,143.70, 1,363,496.85 and 278,062.98

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Solution

The fourth proportional to 909,143.70, 1,363,496.85 and 278,062.98 is: 417,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,143.70 : 1,363,496.85 = 278,062.98 : x
  2. Step 2: Convert to fraction form
    909,143.70/1,363,496.85 = 278,062.98/x
  3. Step 3: Cross multiply
    909,143.70x = 1,363,496.85 × 278,062.98
  4. Step 4: Simplify right side
    909,143.70x = 379,137,997,331.61
  5. Step 5: Solve for x
    x = 379,137,997,331.61/909,143.70
  6. Step 6: Final answer
    x = 417,027.58

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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.