Home / 909,230.16-1,363,795.81-278,143.98

Finding the Fourth Proportional to 909,230.16, 1,363,795.81 and 278,143.98

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Solution

The fourth proportional to 909,230.16, 1,363,795.81 and 278,143.98 is: 417,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,230.16 : 1,363,795.81 = 278,143.98 : x
  2. Step 2: Convert to fraction form
    909,230.16/1,363,795.81 = 278,143.98/x
  3. Step 3: Cross multiply
    909,230.16x = 1,363,795.81 × 278,143.98
  4. Step 4: Simplify right side
    909,230.16x = 379,331,589,734.17
  5. Step 5: Solve for x
    x = 379,331,589,734.17/909,230.16
  6. Step 6: Final answer
    x = 417,200.84

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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.