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Finding the Fourth Proportional to 843,816.80, 1,265,802.10 and 275,051.91

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Solution

The fourth proportional to 843,816.80, 1,265,802.10 and 275,051.91 is: 412,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,816.80 : 1,265,802.10 = 275,051.91 : x
  2. Step 2: Convert to fraction form
    843,816.80/1,265,802.10 = 275,051.91/x
  3. Step 3: Cross multiply
    843,816.80x = 1,265,802.10 × 275,051.91
  4. Step 4: Simplify right side
    843,816.80x = 348,161,277,582.74
  5. Step 5: Solve for x
    x = 348,161,277,582.74/843,816.80
  6. Step 6: Final answer
    x = 412,602.92

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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.