Home / 770,298.06-1,155,213.81-209,259.66

Finding the Fourth Proportional to 770,298.06, 1,155,213.81 and 209,259.66

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Solution

The fourth proportional to 770,298.06, 1,155,213.81 and 209,259.66 is: 313,826.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,298.06 : 1,155,213.81 = 209,259.66 : x
  2. Step 2: Convert to fraction form
    770,298.06/1,155,213.81 = 209,259.66/x
  3. Step 3: Cross multiply
    770,298.06x = 1,155,213.81 × 209,259.66
  4. Step 4: Simplify right side
    770,298.06x = 241,739,649,107.91
  5. Step 5: Solve for x
    x = 241,739,649,107.91/770,298.06
  6. Step 6: Final answer
    x = 313,826.12

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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.