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Finding the Fourth Proportional to 561,207.60, 841,811.40 and 336,821.40

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Solution

The fourth proportional to 561,207.60, 841,811.40 and 336,821.40 is: 505,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,207.60 : 841,811.40 = 336,821.40 : x
  2. Step 2: Convert to fraction form
    561,207.60/841,811.40 = 336,821.40/x
  3. Step 3: Cross multiply
    561,207.60x = 841,811.40 × 336,821.40
  4. Step 4: Simplify right side
    561,207.60x = 283,540,094,283.96
  5. Step 5: Solve for x
    x = 283,540,094,283.96/561,207.60
  6. Step 6: Final answer
    x = 505,232.10

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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.