Home / 779,716.20-1,170,011.70-330,360.60

Finding the Fourth Proportional to 779,716.20, 1,170,011.70 and 330,360.60

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Solution

The fourth proportional to 779,716.20, 1,170,011.70 and 330,360.60 is: 495,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,716.20 : 1,170,011.70 = 330,360.60 : x
  2. Step 2: Convert to fraction form
    779,716.20/1,170,011.70 = 330,360.60/x
  3. Step 3: Cross multiply
    779,716.20x = 1,170,011.70 × 330,360.60
  4. Step 4: Simplify right side
    779,716.20x = 386,525,767,219.02
  5. Step 5: Solve for x
    x = 386,525,767,219.02/779,716.20
  6. Step 6: Final answer
    x = 495,726.22

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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.