Home / 770,253.49-1,155,292.75-209,331.73

Finding the Fourth Proportional to 770,253.49, 1,155,292.75 and 209,331.73

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Solution

The fourth proportional to 770,253.49, 1,155,292.75 and 209,331.73 is: 313,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,253.49 : 1,155,292.75 = 209,331.73 : x
  2. Step 2: Convert to fraction form
    770,253.49/1,155,292.75 = 209,331.73/x
  3. Step 3: Cross multiply
    770,253.49x = 1,155,292.75 × 209,331.73
  4. Step 4: Simplify right side
    770,253.49x = 241,839,430,013.96
  5. Step 5: Solve for x
    x = 241,839,430,013.96/770,253.49
  6. Step 6: Final answer
    x = 313,973.82

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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.