Home / 779,969.07-1,169,805.63-380,207.79

Finding the Fourth Proportional to 779,969.07, 1,169,805.63 and 380,207.79

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Solution

The fourth proportional to 779,969.07, 1,169,805.63 and 380,207.79 is: 570,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,969.07 : 1,169,805.63 = 380,207.79 : x
  2. Step 2: Convert to fraction form
    779,969.07/1,169,805.63 = 380,207.79/x
  3. Step 3: Cross multiply
    779,969.07x = 1,169,805.63 × 380,207.79
  4. Step 4: Simplify right side
    779,969.07x = 444,769,213,311.86
  5. Step 5: Solve for x
    x = 444,769,213,311.86/779,969.07
  6. Step 6: Final answer
    x = 570,239.55

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1.5x scale

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.