Home / 413,120.72-569,785.20-298,828.10

Finding the Fourth Proportional to 413,120.72, 569,785.20 and 298,828.10

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Solution

The fourth proportional to 413,120.72, 569,785.20 and 298,828.10 is: 412,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,120.72 : 569,785.20 = 298,828.10 : x
  2. Step 2: Convert to fraction form
    413,120.72/569,785.20 = 298,828.10/x
  3. Step 3: Cross multiply
    413,120.72x = 569,785.20 × 298,828.10
  4. Step 4: Simplify right side
    413,120.72x = 170,267,828,724.12
  5. Step 5: Solve for x
    x = 170,267,828,724.12/413,120.72
  6. Step 6: Final answer
    x = 412,150.30

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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.