Home / 1,385,279.51-1,911,667.10-773,441.64

Finding the Fourth Proportional to 1,385,279.51, 1,911,667.10 and 773,441.64

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Solution

The fourth proportional to 1,385,279.51, 1,911,667.10 and 773,441.64 is: 1,067,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,279.51 : 1,911,667.10 = 773,441.64 : x
  2. Step 2: Convert to fraction form
    1,385,279.51/1,911,667.10 = 773,441.64/x
  3. Step 3: Cross multiply
    1,385,279.51x = 1,911,667.10 × 773,441.64
  4. Step 4: Simplify right side
    1,385,279.51x = 1,478,562,933,090.84
  5. Step 5: Solve for x
    x = 1,478,562,933,090.84/1,385,279.51
  6. Step 6: Final answer
    x = 1,067,339.07

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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.