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Finding the Fourth Proportional to 836,369.10, 1,255,537.80 and 830,464.20

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Solution

The fourth proportional to 836,369.10, 1,255,537.80 and 830,464.20 is: 1,246,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,369.10 : 1,255,537.80 = 830,464.20 : x
  2. Step 2: Convert to fraction form
    836,369.10/1,255,537.80 = 830,464.20/x
  3. Step 3: Cross multiply
    836,369.10x = 1,255,537.80 × 830,464.20
  4. Step 4: Simplify right side
    836,369.10x = 1,042,679,194,646.76
  5. Step 5: Solve for x
    x = 1,042,679,194,646.76/836,369.10
  6. Step 6: Final answer
    x = 1,246,673.50

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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.