Home / 826,621.90-1,239,932.85-742,641.10

Finding the Fourth Proportional to 826,621.90, 1,239,932.85 and 742,641.10

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Solution

The fourth proportional to 826,621.90, 1,239,932.85 and 742,641.10 is: 1,113,961.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,621.90 : 1,239,932.85 = 742,641.10 : x
  2. Step 2: Convert to fraction form
    826,621.90/1,239,932.85 = 742,641.10/x
  3. Step 3: Cross multiply
    826,621.90x = 1,239,932.85 × 742,641.10
  4. Step 4: Simplify right side
    826,621.90x = 920,825,095,650.14
  5. Step 5: Solve for x
    x = 920,825,095,650.14/826,621.90
  6. Step 6: Final answer
    x = 1,113,961.65

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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.