Home / 1,208,420.02-1,667,586.36-664,555.80

Finding the Fourth Proportional to 1,208,420.02, 1,667,586.36 and 664,555.80

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Solution

The fourth proportional to 1,208,420.02, 1,667,586.36 and 664,555.80 is: 917,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,420.02 : 1,667,586.36 = 664,555.80 : x
  2. Step 2: Convert to fraction form
    1,208,420.02/1,667,586.36 = 664,555.80/x
  3. Step 3: Cross multiply
    1,208,420.02x = 1,667,586.36 × 664,555.80
  4. Step 4: Simplify right side
    1,208,420.02x = 1,108,204,187,538.89
  5. Step 5: Solve for x
    x = 1,108,204,187,538.89/1,208,420.02
  6. Step 6: Final answer
    x = 917,068.71

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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.