Home / 403,218.30-604,827.45-285,120.30

Finding the Fourth Proportional to 403,218.30, 604,827.45 and 285,120.30

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Solution

The fourth proportional to 403,218.30, 604,827.45 and 285,120.30 is: 427,680.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,218.30 : 604,827.45 = 285,120.30 : x
  2. Step 2: Convert to fraction form
    403,218.30/604,827.45 = 285,120.30/x
  3. Step 3: Cross multiply
    403,218.30x = 604,827.45 × 285,120.30
  4. Step 4: Simplify right side
    403,218.30x = 172,448,583,992.24
  5. Step 5: Solve for x
    x = 172,448,583,992.24/403,218.30
  6. Step 6: Final answer
    x = 427,680.45

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Similar ratio
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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.