Home / 1,128,211.71-1,691,705.17-512,377.50

Finding the Fourth Proportional to 1,128,211.71, 1,691,705.17 and 512,377.50

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Solution

The fourth proportional to 1,128,211.71, 1,691,705.17 and 512,377.50 is: 768,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,211.71 : 1,691,705.17 = 512,377.50 : x
  2. Step 2: Convert to fraction form
    1,128,211.71/1,691,705.17 = 512,377.50/x
  3. Step 3: Cross multiply
    1,128,211.71x = 1,691,705.17 × 512,377.50
  4. Step 4: Simplify right side
    1,128,211.71x = 866,791,664,651.26
  5. Step 5: Solve for x
    x = 866,791,664,651.26/1,128,211.71
  6. Step 6: Final answer
    x = 768,288.13

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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.