Home / 1,220,934.76-1,684,996.50-711,626.20

Finding the Fourth Proportional to 1,220,934.76, 1,684,996.50 and 711,626.20

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Solution

The fourth proportional to 1,220,934.76, 1,684,996.50 and 711,626.20 is: 982,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,934.76 : 1,684,996.50 = 711,626.20 : x
  2. Step 2: Convert to fraction form
    1,220,934.76/1,684,996.50 = 711,626.20/x
  3. Step 3: Cross multiply
    1,220,934.76x = 1,684,996.50 × 711,626.20
  4. Step 4: Simplify right side
    1,220,934.76x = 1,199,087,656,308.30
  5. Step 5: Solve for x
    x = 1,199,087,656,308.30/1,220,934.76
  6. Step 6: Final answer
    x = 982,106.25

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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.