Home / 1,207,598.70-1,809,324.45-638,136.30

Finding the Fourth Proportional to 1,207,598.70, 1,809,324.45 and 638,136.30

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Solution

The fourth proportional to 1,207,598.70, 1,809,324.45 and 638,136.30 is: 956,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,598.70 : 1,809,324.45 = 638,136.30 : x
  2. Step 2: Convert to fraction form
    1,207,598.70/1,809,324.45 = 638,136.30/x
  3. Step 3: Cross multiply
    1,207,598.70x = 1,809,324.45 × 638,136.30
  4. Step 4: Simplify right side
    1,207,598.70x = 1,154,595,610,022.54
  5. Step 5: Solve for x
    x = 1,154,595,610,022.54/1,207,598.70
  6. Step 6: Final answer
    x = 956,108.69

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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.