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Finding the Fourth Proportional to 561,373.80, 844,134.30 and 470,135.40

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Solution

The fourth proportional to 561,373.80, 844,134.30 and 470,135.40 is: 706,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,373.80 : 844,134.30 = 470,135.40 : x
  2. Step 2: Convert to fraction form
    561,373.80/844,134.30 = 470,135.40/x
  3. Step 3: Cross multiply
    561,373.80x = 844,134.30 × 470,135.40
  4. Step 4: Simplify right side
    561,373.80x = 396,857,416,784.22
  5. Step 5: Solve for x
    x = 396,857,416,784.22/561,373.80
  6. Step 6: Final answer
    x = 706,939.68

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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.