Home / 413,004.80-619,507.20-319,577.60

Finding the Fourth Proportional to 413,004.80, 619,507.20 and 319,577.60

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Solution

The fourth proportional to 413,004.80, 619,507.20 and 319,577.60 is: 479,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,004.80 : 619,507.20 = 319,577.60 : x
  2. Step 2: Convert to fraction form
    413,004.80/619,507.20 = 319,577.60/x
  3. Step 3: Cross multiply
    413,004.80x = 619,507.20 × 319,577.60
  4. Step 4: Simplify right side
    413,004.80x = 197,980,624,158.72
  5. Step 5: Solve for x
    x = 197,980,624,158.72/413,004.80
  6. Step 6: Final answer
    x = 479,366.40

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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.