Home / 806,468.40-1,209,848.40-406,101.60

Finding the Fourth Proportional to 806,468.40, 1,209,848.40 and 406,101.60

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Solution

The fourth proportional to 806,468.40, 1,209,848.40 and 406,101.60 is: 609,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,468.40 : 1,209,848.40 = 406,101.60 : x
  2. Step 2: Convert to fraction form
    806,468.40/1,209,848.40 = 406,101.60/x
  3. Step 3: Cross multiply
    806,468.40x = 1,209,848.40 × 406,101.60
  4. Step 4: Simplify right side
    806,468.40x = 491,321,370,997.44
  5. Step 5: Solve for x
    x = 491,321,370,997.44/806,468.40
  6. Step 6: Final answer
    x = 609,225.82

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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.