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Finding the Fourth Proportional to 2,905,860, 4,358,790 and 804,612

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Solution

The fourth proportional to 2,905,860, 4,358,790 and 804,612 is: 1,206,918

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905,860 : 4,358,790 = 804,612 : x
  2. Step 2: Convert to fraction form
    2,905,860/4,358,790 = 804,612/x
  3. Step 3: Cross multiply
    2,905,860x = 4,358,790 × 804,612
  4. Step 4: Simplify right side
    2,905,860x = 3,507,134,739,480
  5. Step 5: Solve for x
    x = 3,507,134,739,480/2,905,860
  6. Step 6: Final answer
    x = 1,206,918

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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.