Home / 986,571.83-1,479,898.89-312,638.22

Finding the Fourth Proportional to 986,571.83, 1,479,898.89 and 312,638.22

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Solution

The fourth proportional to 986,571.83, 1,479,898.89 and 312,638.22 is: 468,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,571.83 : 1,479,898.89 = 312,638.22 : x
  2. Step 2: Convert to fraction form
    986,571.83/1,479,898.89 = 312,638.22/x
  3. Step 3: Cross multiply
    986,571.83x = 1,479,898.89 × 312,638.22
  4. Step 4: Simplify right side
    986,571.83x = 462,672,954,749.58
  5. Step 5: Solve for x
    x = 462,672,954,749.58/986,571.83
  6. Step 6: Final answer
    x = 468,970.37

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1.5x scale

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.