Home / 1,212,111.41-1,672,911.23-729,164.70

Finding the Fourth Proportional to 1,212,111.41, 1,672,911.23 and 729,164.70

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Solution

The fourth proportional to 1,212,111.41, 1,672,911.23 and 729,164.70 is: 1,006,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,111.41 : 1,672,911.23 = 729,164.70 : x
  2. Step 2: Convert to fraction form
    1,212,111.41/1,672,911.23 = 729,164.70/x
  3. Step 3: Cross multiply
    1,212,111.41x = 1,672,911.23 × 729,164.70
  4. Step 4: Simplify right side
    1,212,111.41x = 1,219,827,811,503.76
  5. Step 5: Solve for x
    x = 1,219,827,811,503.76/1,212,111.41
  6. Step 6: Final answer
    x = 1,006,366.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.