Home / 739,745.70-1,108,637.55-379,902.03

Finding the Fourth Proportional to 739,745.70, 1,108,637.55 and 379,902.03

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Solution

The fourth proportional to 739,745.70, 1,108,637.55 and 379,902.03 is: 569,349.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,745.70 : 1,108,637.55 = 379,902.03 : x
  2. Step 2: Convert to fraction form
    739,745.70/1,108,637.55 = 379,902.03/x
  3. Step 3: Cross multiply
    739,745.70x = 1,108,637.55 × 379,902.03
  4. Step 4: Simplify right side
    739,745.70x = 421,173,655,779.23
  5. Step 5: Solve for x
    x = 421,173,655,779.23/739,745.70
  6. Step 6: Final answer
    x = 569,349.24

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1.5x scale

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.