Home / 1,687,210.80-2,530,742.40-489,107.04

Finding the Fourth Proportional to 1,687,210.80, 2,530,742.40 and 489,107.04

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Solution

The fourth proportional to 1,687,210.80, 2,530,742.40 and 489,107.04 is: 733,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,210.80 : 2,530,742.40 = 489,107.04 : x
  2. Step 2: Convert to fraction form
    1,687,210.80/2,530,742.40 = 489,107.04/x
  3. Step 3: Cross multiply
    1,687,210.80x = 2,530,742.40 × 489,107.04
  4. Step 4: Simplify right side
    1,687,210.80x = 1,237,803,924,266.50
  5. Step 5: Solve for x
    x = 1,237,803,924,266.50/1,687,210.80
  6. Step 6: Final answer
    x = 733,639.17

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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.