Home / 1,292,449.37-1,938,953.70-393,867.36

Finding the Fourth Proportional to 1,292,449.37, 1,938,953.70 and 393,867.36

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Solution

The fourth proportional to 1,292,449.37, 1,938,953.70 and 393,867.36 is: 590,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,449.37 : 1,938,953.70 = 393,867.36 : x
  2. Step 2: Convert to fraction form
    1,292,449.37/1,938,953.70 = 393,867.36/x
  3. Step 3: Cross multiply
    1,292,449.37x = 1,938,953.70 × 393,867.36
  4. Step 4: Simplify right side
    1,292,449.37x = 763,690,574,981.23
  5. Step 5: Solve for x
    x = 763,690,574,981.23/1,292,449.37
  6. Step 6: Final answer
    x = 590,886.26

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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.