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Finding the Fourth Proportional to 955,658, 1,433,487 and 290,810

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Solution

The fourth proportional to 955,658, 1,433,487 and 290,810 is: 436,215

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,658 : 1,433,487 = 290,810 : x
  2. Step 2: Convert to fraction form
    955,658/1,433,487 = 290,810/x
  3. Step 3: Cross multiply
    955,658x = 1,433,487 × 290,810
  4. Step 4: Simplify right side
    955,658x = 416,872,354,470
  5. Step 5: Solve for x
    x = 416,872,354,470/955,658
  6. Step 6: Final answer
    x = 436,215

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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.