Home / 1,407,531.72-2,111,268.03-342,579.72

Finding the Fourth Proportional to 1,407,531.72, 2,111,268.03 and 342,579.72

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Solution

The fourth proportional to 1,407,531.72, 2,111,268.03 and 342,579.72 is: 513,862.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,531.72 : 2,111,268.03 = 342,579.72 : x
  2. Step 2: Convert to fraction form
    1,407,531.72/2,111,268.03 = 342,579.72/x
  3. Step 3: Cross multiply
    1,407,531.72x = 2,111,268.03 × 342,579.72
  4. Step 4: Simplify right side
    1,407,531.72x = 723,277,610,562.35
  5. Step 5: Solve for x
    x = 723,277,610,562.35/1,407,531.72
  6. Step 6: Final answer
    x = 513,862.39

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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.