Home / 779,203.47-1,168,838.55-305,991.21

Finding the Fourth Proportional to 779,203.47, 1,168,838.55 and 305,991.21

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Solution

The fourth proportional to 779,203.47, 1,168,838.55 and 305,991.21 is: 458,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,203.47 : 1,168,838.55 = 305,991.21 : x
  2. Step 2: Convert to fraction form
    779,203.47/1,168,838.55 = 305,991.21/x
  3. Step 3: Cross multiply
    779,203.47x = 1,168,838.55 × 305,991.21
  4. Step 4: Simplify right side
    779,203.47x = 357,654,322,209.15
  5. Step 5: Solve for x
    x = 357,654,322,209.15/779,203.47
  6. Step 6: Final answer
    x = 458,999.91

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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.