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Finding the Fourth Proportional to 609,233.12, 840,741.60 and 340,961.12

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Solution

The fourth proportional to 609,233.12, 840,741.60 and 340,961.12 is: 470,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,233.12 : 840,741.60 = 340,961.12 : x
  2. Step 2: Convert to fraction form
    609,233.12/840,741.60 = 340,961.12/x
  3. Step 3: Cross multiply
    609,233.12x = 840,741.60 × 340,961.12
  4. Step 4: Simplify right side
    609,233.12x = 286,660,197,566.59
  5. Step 5: Solve for x
    x = 286,660,197,566.59/609,233.12
  6. Step 6: Final answer
    x = 470,526.29

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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.