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Finding the Fourth Proportional to 609,271.90, 840,821.49 and 337,339.78

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Solution

The fourth proportional to 609,271.90, 840,821.49 and 337,339.78 is: 465,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,271.90 : 840,821.49 = 337,339.78 : x
  2. Step 2: Convert to fraction form
    609,271.90/840,821.49 = 337,339.78/x
  3. Step 3: Cross multiply
    609,271.90x = 840,821.49 × 337,339.78
  4. Step 4: Simplify right side
    609,271.90x = 283,642,534,353.82
  5. Step 5: Solve for x
    x = 283,642,534,353.82/609,271.90
  6. Step 6: Final answer
    x = 465,543.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.