Home / 986,166.90-1,479,471.48-312,289.02

Finding the Fourth Proportional to 986,166.90, 1,479,471.48 and 312,289.02

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Solution

The fourth proportional to 986,166.90, 1,479,471.48 and 312,289.02 is: 468,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,166.90 : 1,479,471.48 = 312,289.02 : x
  2. Step 2: Convert to fraction form
    986,166.90/1,479,471.48 = 312,289.02/x
  3. Step 3: Cross multiply
    986,166.90x = 1,479,471.48 × 312,289.02
  4. Step 4: Simplify right side
    986,166.90x = 462,022,698,607.15
  5. Step 5: Solve for x
    x = 462,022,698,607.15/986,166.90
  6. Step 6: Final answer
    x = 468,503.56

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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.