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Finding the Fourth Proportional to 473,690.13, 654,128.82 and 304,219.50

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Solution

The fourth proportional to 473,690.13, 654,128.82 and 304,219.50 is: 420,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,690.13 : 654,128.82 = 304,219.50 : x
  2. Step 2: Convert to fraction form
    473,690.13/654,128.82 = 304,219.50/x
  3. Step 3: Cross multiply
    473,690.13x = 654,128.82 × 304,219.50
  4. Step 4: Simplify right side
    473,690.13x = 198,998,742,555.99
  5. Step 5: Solve for x
    x = 198,998,742,555.99/473,690.13
  6. Step 6: Final answer
    x = 420,103.21

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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.