Home / 1,315,920.90-1,973,881.35-1,193,886.30

Finding the Fourth Proportional to 1,315,920.90, 1,973,881.35 and 1,193,886.30

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Solution

The fourth proportional to 1,315,920.90, 1,973,881.35 and 1,193,886.30 is: 1,790,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,920.90 : 1,973,881.35 = 1,193,886.30 : x
  2. Step 2: Convert to fraction form
    1,315,920.90/1,973,881.35 = 1,193,886.30/x
  3. Step 3: Cross multiply
    1,315,920.90x = 1,973,881.35 × 1,193,886.30
  4. Step 4: Simplify right side
    1,315,920.90x = 2,356,589,901,590.51
  5. Step 5: Solve for x
    x = 2,356,589,901,590.51/1,315,920.90
  6. Step 6: Final answer
    x = 1,790,829.45

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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.