Home / 1,292,182.70-1,938,273.92-345,528.81

Finding the Fourth Proportional to 1,292,182.70, 1,938,273.92 and 345,528.81

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Solution

The fourth proportional to 1,292,182.70, 1,938,273.92 and 345,528.81 is: 518,293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,182.70 : 1,938,273.92 = 345,528.81 : x
  2. Step 2: Convert to fraction form
    1,292,182.70/1,938,273.92 = 345,528.81/x
  3. Step 3: Cross multiply
    1,292,182.70x = 1,938,273.92 × 345,528.81
  4. Step 4: Simplify right side
    1,292,182.70x = 669,729,479,303.99
  5. Step 5: Solve for x
    x = 669,729,479,303.99/1,292,182.70
  6. Step 6: Final answer
    x = 518,293.18

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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.