Home / 1,020,185.91-1,407,867.35-561,306.54

Finding the Fourth Proportional to 1,020,185.91, 1,407,867.35 and 561,306.54

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Solution

The fourth proportional to 1,020,185.91, 1,407,867.35 and 561,306.54 is: 774,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,185.91 : 1,407,867.35 = 561,306.54 : x
  2. Step 2: Convert to fraction form
    1,020,185.91/1,407,867.35 = 561,306.54/x
  3. Step 3: Cross multiply
    1,020,185.91x = 1,407,867.35 × 561,306.54
  4. Step 4: Simplify right side
    1,020,185.91x = 790,245,148,200.94
  5. Step 5: Solve for x
    x = 790,245,148,200.94/1,020,185.91
  6. Step 6: Final answer
    x = 774,608.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.