Home / 1,205,399.48-1,808,099.36-939,359.32

Finding the Fourth Proportional to 1,205,399.48, 1,808,099.36 and 939,359.32

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Solution

The fourth proportional to 1,205,399.48, 1,808,099.36 and 939,359.32 is: 1,409,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,399.48 : 1,808,099.36 = 939,359.32 : x
  2. Step 2: Convert to fraction form
    1,205,399.48/1,808,099.36 = 939,359.32/x
  3. Step 3: Cross multiply
    1,205,399.48x = 1,808,099.36 × 939,359.32
  4. Step 4: Simplify right side
    1,205,399.48x = 1,698,454,985,302.04
  5. Step 5: Solve for x
    x = 1,698,454,985,302.04/1,205,399.48
  6. Step 6: Final answer
    x = 1,409,039.09

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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.