Home / 859,628.40-1,289,442.60-823,225.20

Finding the Fourth Proportional to 859,628.40, 1,289,442.60 and 823,225.20

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Solution

The fourth proportional to 859,628.40, 1,289,442.60 and 823,225.20 is: 1,234,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,628.40 : 1,289,442.60 = 823,225.20 : x
  2. Step 2: Convert to fraction form
    859,628.40/1,289,442.60 = 823,225.20/x
  3. Step 3: Cross multiply
    859,628.40x = 1,289,442.60 × 823,225.20
  4. Step 4: Simplify right side
    859,628.40x = 1,061,501,642,273.52
  5. Step 5: Solve for x
    x = 1,061,501,642,273.52/859,628.40
  6. Step 6: Final answer
    x = 1,234,837.80

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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.