Home / 770,069.69-1,155,106.50-314,660.94

Finding the Fourth Proportional to 770,069.69, 1,155,106.50 and 314,660.94

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Solution

The fourth proportional to 770,069.69, 1,155,106.50 and 314,660.94 is: 471,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,069.69 : 1,155,106.50 = 314,660.94 : x
  2. Step 2: Convert to fraction form
    770,069.69/1,155,106.50 = 314,660.94/x
  3. Step 3: Cross multiply
    770,069.69x = 1,155,106.50 × 314,660.94
  4. Step 4: Simplify right side
    770,069.69x = 363,466,897,090.11
  5. Step 5: Solve for x
    x = 363,466,897,090.11/770,069.69
  6. Step 6: Final answer
    x = 471,992.21

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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.