Home / 1,223,007.89-1,687,478.94-739,563.03

Finding the Fourth Proportional to 1,223,007.89, 1,687,478.94 and 739,563.03

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Solution

The fourth proportional to 1,223,007.89, 1,687,478.94 and 739,563.03 is: 1,020,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,007.89 : 1,687,478.94 = 739,563.03 : x
  2. Step 2: Convert to fraction form
    1,223,007.89/1,687,478.94 = 739,563.03/x
  3. Step 3: Cross multiply
    1,223,007.89x = 1,687,478.94 × 739,563.03
  4. Step 4: Simplify right side
    1,223,007.89x = 1,247,997,037,927.59
  5. Step 5: Solve for x
    x = 1,247,997,037,927.59/1,223,007.89
  6. Step 6: Final answer
    x = 1,020,432.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.