Home / 1,292,272.65-1,938,698.06-393,784.70

Finding the Fourth Proportional to 1,292,272.65, 1,938,698.06 and 393,784.70

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Solution

The fourth proportional to 1,292,272.65, 1,938,698.06 and 393,784.70 is: 590,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,272.65 : 1,938,698.06 = 393,784.70 : x
  2. Step 2: Convert to fraction form
    1,292,272.65/1,938,698.06 = 393,784.70/x
  3. Step 3: Cross multiply
    1,292,272.65x = 1,938,698.06 × 393,784.70
  4. Step 4: Simplify right side
    1,292,272.65x = 763,429,633,947.68
  5. Step 5: Solve for x
    x = 763,429,633,947.68/1,292,272.65
  6. Step 6: Final answer
    x = 590,765.14

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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.