Home / 1,117,719.30-1,675,638.54-486,157.44

Finding the Fourth Proportional to 1,117,719.30, 1,675,638.54 and 486,157.44

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Solution

The fourth proportional to 1,117,719.30, 1,675,638.54 and 486,157.44 is: 728,827.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,719.30 : 1,675,638.54 = 486,157.44 : x
  2. Step 2: Convert to fraction form
    1,117,719.30/1,675,638.54 = 486,157.44/x
  3. Step 3: Cross multiply
    1,117,719.30x = 1,675,638.54 × 486,157.44
  4. Step 4: Simplify right side
    1,117,719.30x = 814,624,142,971.74
  5. Step 5: Solve for x
    x = 814,624,142,971.74/1,117,719.30
  6. Step 6: Final answer
    x = 728,827.12

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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.