Home / 406,284.84-609,199.20-278,345.58

Finding the Fourth Proportional to 406,284.84, 609,199.20 and 278,345.58

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Solution

The fourth proportional to 406,284.84, 609,199.20 and 278,345.58 is: 417,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,284.84 : 609,199.20 = 278,345.58 : x
  2. Step 2: Convert to fraction form
    406,284.84/609,199.20 = 278,345.58/x
  3. Step 3: Cross multiply
    406,284.84x = 609,199.20 × 278,345.58
  4. Step 4: Simplify right side
    406,284.84x = 169,567,904,659.54
  5. Step 5: Solve for x
    x = 169,567,904,659.54/406,284.84
  6. Step 6: Final answer
    x = 417,362.13

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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.