Home / 1,292,273.65-1,938,699.56-393,785.70

Finding the Fourth Proportional to 1,292,273.65, 1,938,699.56 and 393,785.70

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Solution

The fourth proportional to 1,292,273.65, 1,938,699.56 and 393,785.70 is: 590,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,273.65 : 1,938,699.56 = 393,785.70 : x
  2. Step 2: Convert to fraction form
    1,292,273.65/1,938,699.56 = 393,785.70/x
  3. Step 3: Cross multiply
    1,292,273.65x = 1,938,699.56 × 393,785.70
  4. Step 4: Simplify right side
    1,292,273.65x = 763,432,163,324.29
  5. Step 5: Solve for x
    x = 763,432,163,324.29/1,292,273.65
  6. Step 6: Final answer
    x = 590,766.64

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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.