Home / 420,278.04-579,999.96-239,006.52

Finding the Fourth Proportional to 420,278.04, 579,999.96 and 239,006.52

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Solution

The fourth proportional to 420,278.04, 579,999.96 and 239,006.52 is: 329,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,278.04 : 579,999.96 = 239,006.52 : x
  2. Step 2: Convert to fraction form
    420,278.04/579,999.96 = 239,006.52/x
  3. Step 3: Cross multiply
    420,278.04x = 579,999.96 × 239,006.52
  4. Step 4: Simplify right side
    420,278.04x = 138,623,772,039.74
  5. Step 5: Solve for x
    x = 138,623,772,039.74/420,278.04
  6. Step 6: Final answer
    x = 329,838.25

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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.