Home / 420,292.76-580,038.36-239,061.38

Finding the Fourth Proportional to 420,292.76, 580,038.36 and 239,061.38

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Solution

The fourth proportional to 420,292.76, 580,038.36 and 239,061.38 is: 329,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,292.76 : 580,038.36 = 239,061.38 : x
  2. Step 2: Convert to fraction form
    420,292.76/580,038.36 = 239,061.38/x
  3. Step 3: Cross multiply
    420,292.76x = 580,038.36 × 239,061.38
  4. Step 4: Simplify right side
    420,292.76x = 138,664,770,794.54
  5. Step 5: Solve for x
    x = 138,664,770,794.54/420,292.76
  6. Step 6: Final answer
    x = 329,924.24

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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.