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Finding the Fourth Proportional to 611,284.60, 916,052.10 and 450,102.70

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Solution

The fourth proportional to 611,284.60, 916,052.10 and 450,102.70 is: 674,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,284.60 : 916,052.10 = 450,102.70 : x
  2. Step 2: Convert to fraction form
    611,284.60/916,052.10 = 450,102.70/x
  3. Step 3: Cross multiply
    611,284.60x = 916,052.10 × 450,102.70
  4. Step 4: Simplify right side
    611,284.60x = 412,317,523,550.67
  5. Step 5: Solve for x
    x = 412,317,523,550.67/611,284.60
  6. Step 6: Final answer
    x = 674,509.91

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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.