Home / 660,719.83-991,021.42-239,999.35

Finding the Fourth Proportional to 660,719.83, 991,021.42 and 239,999.35

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Solution

The fourth proportional to 660,719.83, 991,021.42 and 239,999.35 is: 359,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,719.83 : 991,021.42 = 239,999.35 : x
  2. Step 2: Convert to fraction form
    660,719.83/991,021.42 = 239,999.35/x
  3. Step 3: Cross multiply
    660,719.83x = 991,021.42 × 239,999.35
  4. Step 4: Simplify right side
    660,719.83x = 237,844,490,480.97
  5. Step 5: Solve for x
    x = 237,844,490,480.97/660,719.83
  6. Step 6: Final answer
    x = 359,977.83

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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.