Home / 770,338.97-1,155,911.39-315,268.01

Finding the Fourth Proportional to 770,338.97, 1,155,911.39 and 315,268.01

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Solution

The fourth proportional to 770,338.97, 1,155,911.39 and 315,268.01 is: 473,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,338.97 : 1,155,911.39 = 315,268.01 : x
  2. Step 2: Convert to fraction form
    770,338.97/1,155,911.39 = 315,268.01/x
  3. Step 3: Cross multiply
    770,338.97x = 1,155,911.39 × 315,268.01
  4. Step 4: Simplify right side
    770,338.97x = 364,421,876,305.74
  5. Step 5: Solve for x
    x = 364,421,876,305.74/770,338.97
  6. Step 6: Final answer
    x = 473,066.91

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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.