Home / 420,277.29-579,998.93-239,005.77

Finding the Fourth Proportional to 420,277.29, 579,998.93 and 239,005.77

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Solution

The fourth proportional to 420,277.29, 579,998.93 and 239,005.77 is: 329,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,277.29 : 579,998.93 = 239,005.77 : x
  2. Step 2: Convert to fraction form
    420,277.29/579,998.93 = 239,005.77/x
  3. Step 3: Cross multiply
    420,277.29x = 579,998.93 × 239,005.77
  4. Step 4: Simplify right side
    420,277.29x = 138,623,089,668.80
  5. Step 5: Solve for x
    x = 138,623,089,668.80/420,277.29
  6. Step 6: Final answer
    x = 329,837.21

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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.