Home / 916,212-1,374,405.48-284,956.32

Finding the Fourth Proportional to 916,212, 1,374,405.48 and 284,956.32

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Solution

The fourth proportional to 916,212, 1,374,405.48 and 284,956.32 is: 427,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,212 : 1,374,405.48 = 284,956.32 : x
  2. Step 2: Convert to fraction form
    916,212/1,374,405.48 = 284,956.32/x
  3. Step 3: Cross multiply
    916,212x = 1,374,405.48 × 284,956.32
  4. Step 4: Simplify right side
    916,212x = 391,645,527,768.63
  5. Step 5: Solve for x
    x = 391,645,527,768.63/916,212
  6. Step 6: Final answer
    x = 427,461.69

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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.