Home / 1,292,451.62-1,938,957.08-393,869.61

Finding the Fourth Proportional to 1,292,451.62, 1,938,957.08 and 393,869.61

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Solution

The fourth proportional to 1,292,451.62, 1,938,957.08 and 393,869.61 is: 590,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,451.62 : 1,938,957.08 = 393,869.61 : x
  2. Step 2: Convert to fraction form
    1,292,451.62/1,938,957.08 = 393,869.61/x
  3. Step 3: Cross multiply
    1,292,451.62x = 1,938,957.08 × 393,869.61
  4. Step 4: Simplify right side
    1,292,451.62x = 763,696,266,936.99
  5. Step 5: Solve for x
    x = 763,696,266,936.99/1,292,451.62
  6. Step 6: Final answer
    x = 590,889.64

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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.