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Finding the Fourth Proportional to 611,202.39, 843,418.31 and 369,618.17

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Solution

The fourth proportional to 611,202.39, 843,418.31 and 369,618.17 is: 510,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,202.39 : 843,418.31 = 369,618.17 : x
  2. Step 2: Convert to fraction form
    611,202.39/843,418.31 = 369,618.17/x
  3. Step 3: Cross multiply
    611,202.39x = 843,418.31 × 369,618.17
  4. Step 4: Simplify right side
    611,202.39x = 311,742,726,221.51
  5. Step 5: Solve for x
    x = 311,742,726,221.51/611,202.39
  6. Step 6: Final answer
    x = 510,048.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.