Home / 1,385,016.40-2,077,006.20-486,110.80

Finding the Fourth Proportional to 1,385,016.40, 2,077,006.20 and 486,110.80

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Solution

The fourth proportional to 1,385,016.40, 2,077,006.20 and 486,110.80 is: 728,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,016.40 : 2,077,006.20 = 486,110.80 : x
  2. Step 2: Convert to fraction form
    1,385,016.40/2,077,006.20 = 486,110.80/x
  3. Step 3: Cross multiply
    1,385,016.40x = 2,077,006.20 × 486,110.80
  4. Step 4: Simplify right side
    1,385,016.40x = 1,009,655,145,486.96
  5. Step 5: Solve for x
    x = 1,009,655,145,486.96/1,385,016.40
  6. Step 6: Final answer
    x = 728,984.25

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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.