Home / 876,845.20-1,312,643.40-824,940.40

Finding the Fourth Proportional to 876,845.20, 1,312,643.40 and 824,940.40

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Solution

The fourth proportional to 876,845.20, 1,312,643.40 and 824,940.40 is: 1,234,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,845.20 : 1,312,643.40 = 824,940.40 : x
  2. Step 2: Convert to fraction form
    876,845.20/1,312,643.40 = 824,940.40/x
  3. Step 3: Cross multiply
    876,845.20x = 1,312,643.40 × 824,940.40
  4. Step 4: Simplify right side
    876,845.20x = 1,082,852,571,453.36
  5. Step 5: Solve for x
    x = 1,082,852,571,453.36/876,845.20
  6. Step 6: Final answer
    x = 1,234,941.55

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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.