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Finding the Fourth Proportional to 609,008.40, 840,421.38 and 337,070.48

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Solution

The fourth proportional to 609,008.40, 840,421.38 and 337,070.48 is: 465,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,008.40 : 840,421.38 = 337,070.48 : x
  2. Step 2: Convert to fraction form
    609,008.40/840,421.38 = 337,070.48/x
  3. Step 3: Cross multiply
    609,008.40x = 840,421.38 × 337,070.48
  4. Step 4: Simplify right side
    609,008.40x = 283,281,237,958.86
  5. Step 5: Solve for x
    x = 283,281,237,958.86/609,008.40
  6. Step 6: Final answer
    x = 465,151.61

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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.