Home / 668,921.94-1,003,536.11-289,906.25

Finding the Fourth Proportional to 668,921.94, 1,003,536.11 and 289,906.25

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Solution

The fourth proportional to 668,921.94, 1,003,536.11 and 289,906.25 is: 434,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,921.94 : 1,003,536.11 = 289,906.25 : x
  2. Step 2: Convert to fraction form
    668,921.94/1,003,536.11 = 289,906.25/x
  3. Step 3: Cross multiply
    668,921.94x = 1,003,536.11 × 289,906.25
  4. Step 4: Simplify right side
    668,921.94x = 290,931,386,096.77
  5. Step 5: Solve for x
    x = 290,931,386,096.77/668,921.94
  6. Step 6: Final answer
    x = 434,925.76

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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.