Home / 445,485.90-614,175.80-353,909.04

Finding the Fourth Proportional to 445,485.90, 614,175.80 and 353,909.04

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Solution

The fourth proportional to 445,485.90, 614,175.80 and 353,909.04 is: 487,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,485.90 : 614,175.80 = 353,909.04 : x
  2. Step 2: Convert to fraction form
    445,485.90/614,175.80 = 353,909.04/x
  3. Step 3: Cross multiply
    445,485.90x = 614,175.80 × 353,909.04
  4. Step 4: Simplify right side
    445,485.90x = 217,362,367,769.23
  5. Step 5: Solve for x
    x = 217,362,367,769.23/445,485.90
  6. Step 6: Final answer
    x = 487,921.99

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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.