Home / 1,321,487.25-1,823,497.70-777,503.40

Finding the Fourth Proportional to 1,321,487.25, 1,823,497.70 and 777,503.40

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Solution

The fourth proportional to 1,321,487.25, 1,823,497.70 and 777,503.40 is: 1,072,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,487.25 : 1,823,497.70 = 777,503.40 : x
  2. Step 2: Convert to fraction form
    1,321,487.25/1,823,497.70 = 777,503.40/x
  3. Step 3: Cross multiply
    1,321,487.25x = 1,823,497.70 × 777,503.40
  4. Step 4: Simplify right side
    1,321,487.25x = 1,417,775,657,754.66
  5. Step 5: Solve for x
    x = 1,417,775,657,754.66/1,321,487.25
  6. Step 6: Final answer
    x = 1,072,863.67

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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.