Home / 1,238,748.60-1,857,662.10-490,639.80

Finding the Fourth Proportional to 1,238,748.60, 1,857,662.10 and 490,639.80

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Solution

The fourth proportional to 1,238,748.60, 1,857,662.10 and 490,639.80 is: 735,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,748.60 : 1,857,662.10 = 490,639.80 : x
  2. Step 2: Convert to fraction form
    1,238,748.60/1,857,662.10 = 490,639.80/x
  3. Step 3: Cross multiply
    1,238,748.60x = 1,857,662.10 × 490,639.80
  4. Step 4: Simplify right side
    1,238,748.60x = 911,442,961,211.58
  5. Step 5: Solve for x
    x = 911,442,961,211.58/1,238,748.60
  6. Step 6: Final answer
    x = 735,777.19

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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.