Home / 1,039,731.05-1,559,745.33-320,133.63

Finding the Fourth Proportional to 1,039,731.05, 1,559,745.33 and 320,133.63

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Solution

The fourth proportional to 1,039,731.05, 1,559,745.33 and 320,133.63 is: 480,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,731.05 : 1,559,745.33 = 320,133.63 : x
  2. Step 2: Convert to fraction form
    1,039,731.05/1,559,745.33 = 320,133.63/x
  3. Step 3: Cross multiply
    1,039,731.05x = 1,559,745.33 × 320,133.63
  4. Step 4: Simplify right side
    1,039,731.05x = 499,326,934,368.45
  5. Step 5: Solve for x
    x = 499,326,934,368.45/1,039,731.05
  6. Step 6: Final answer
    x = 480,246.25

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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.