Home / 1,409,788.13-1,945,509.20-765,208.15

Finding the Fourth Proportional to 1,409,788.13, 1,945,509.20 and 765,208.15

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Solution

The fourth proportional to 1,409,788.13, 1,945,509.20 and 765,208.15 is: 1,055,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,788.13 : 1,945,509.20 = 765,208.15 : x
  2. Step 2: Convert to fraction form
    1,409,788.13/1,945,509.20 = 765,208.15/x
  3. Step 3: Cross multiply
    1,409,788.13x = 1,945,509.20 × 765,208.15
  4. Step 4: Simplify right side
    1,409,788.13x = 1,488,719,495,739.98
  5. Step 5: Solve for x
    x = 1,488,719,495,739.98/1,409,788.13
  6. Step 6: Final answer
    x = 1,055,988.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.