Home / 1,286,090.52-1,929,136.62-326,618.10

Finding the Fourth Proportional to 1,286,090.52, 1,929,136.62 and 326,618.10

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Solution

The fourth proportional to 1,286,090.52, 1,929,136.62 and 326,618.10 is: 489,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,090.52 : 1,929,136.62 = 326,618.10 : x
  2. Step 2: Convert to fraction form
    1,286,090.52/1,929,136.62 = 326,618.10/x
  3. Step 3: Cross multiply
    1,286,090.52x = 1,929,136.62 × 326,618.10
  4. Step 4: Simplify right side
    1,286,090.52x = 630,090,937,464.82
  5. Step 5: Solve for x
    x = 630,090,937,464.82/1,286,090.52
  6. Step 6: Final answer
    x = 489,927.36

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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.