Home / 1,126,636.76-1,689,956.40-285,188.52

Finding the Fourth Proportional to 1,126,636.76, 1,689,956.40 and 285,188.52

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Solution

The fourth proportional to 1,126,636.76, 1,689,956.40 and 285,188.52 is: 427,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,636.76 : 1,689,956.40 = 285,188.52 : x
  2. Step 2: Convert to fraction form
    1,126,636.76/1,689,956.40 = 285,188.52/x
  3. Step 3: Cross multiply
    1,126,636.76x = 1,689,956.40 × 285,188.52
  4. Step 4: Simplify right side
    1,126,636.76x = 481,956,164,580.53
  5. Step 5: Solve for x
    x = 481,956,164,580.53/1,126,636.76
  6. Step 6: Final answer
    x = 427,783.10

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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.