Home / 1,008,706-1,392,014.28-556,006.72

Finding the Fourth Proportional to 1,008,706, 1,392,014.28 and 556,006.72

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Solution

The fourth proportional to 1,008,706, 1,392,014.28 and 556,006.72 is: 767,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,706 : 1,392,014.28 = 556,006.72 : x
  2. Step 2: Convert to fraction form
    1,008,706/1,392,014.28 = 556,006.72/x
  3. Step 3: Cross multiply
    1,008,706x = 1,392,014.28 × 556,006.72
  4. Step 4: Simplify right side
    1,008,706x = 773,969,294,015.96
  5. Step 5: Solve for x
    x = 773,969,294,015.96/1,008,706
  6. Step 6: Final answer
    x = 767,289.27

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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.