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Finding the Fourth Proportional to 636,647.02, 878,564.15 and 346,252.27

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Solution

The fourth proportional to 636,647.02, 878,564.15 and 346,252.27 is: 477,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,647.02 : 878,564.15 = 346,252.27 : x
  2. Step 2: Convert to fraction form
    636,647.02/878,564.15 = 346,252.27/x
  3. Step 3: Cross multiply
    636,647.02x = 878,564.15 × 346,252.27
  4. Step 4: Simplify right side
    636,647.02x = 304,204,826,885.30
  5. Step 5: Solve for x
    x = 304,204,826,885.30/636,647.02
  6. Step 6: Final answer
    x = 477,823.37

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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.