Home / 765,119.76-1,055,993.40-442,774.32

Finding the Fourth Proportional to 765,119.76, 1,055,993.40 and 442,774.32

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Solution

The fourth proportional to 765,119.76, 1,055,993.40 and 442,774.32 is: 611,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,119.76 : 1,055,993.40 = 442,774.32 : x
  2. Step 2: Convert to fraction form
    765,119.76/1,055,993.40 = 442,774.32/x
  3. Step 3: Cross multiply
    765,119.76x = 1,055,993.40 × 442,774.32
  4. Step 4: Simplify right side
    765,119.76x = 467,566,759,609.49
  5. Step 5: Solve for x
    x = 467,566,759,609.49/765,119.76
  6. Step 6: Final answer
    x = 611,102.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.