Home / 1,260,890.40-1,891,335.60-629,901.60

Finding the Fourth Proportional to 1,260,890.40, 1,891,335.60 and 629,901.60

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Solution

The fourth proportional to 1,260,890.40, 1,891,335.60 and 629,901.60 is: 944,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,890.40 : 1,891,335.60 = 629,901.60 : x
  2. Step 2: Convert to fraction form
    1,260,890.40/1,891,335.60 = 629,901.60/x
  3. Step 3: Cross multiply
    1,260,890.40x = 1,891,335.60 × 629,901.60
  4. Step 4: Simplify right side
    1,260,890.40x = 1,191,355,320,576.96
  5. Step 5: Solve for x
    x = 1,191,355,320,576.96/1,260,890.40
  6. Step 6: Final answer
    x = 944,852.40

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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.