Home / 815,237.55-1,227,738.69-742,514.94

Finding the Fourth Proportional to 815,237.55, 1,227,738.69 and 742,514.94

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Solution

The fourth proportional to 815,237.55, 1,227,738.69 and 742,514.94 is: 1,118,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,237.55 : 1,227,738.69 = 742,514.94 : x
  2. Step 2: Convert to fraction form
    815,237.55/1,227,738.69 = 742,514.94/x
  3. Step 3: Cross multiply
    815,237.55x = 1,227,738.69 × 742,514.94
  4. Step 4: Simplify right side
    815,237.55x = 911,614,319,741.03
  5. Step 5: Solve for x
    x = 911,614,319,741.03/815,237.55
  6. Step 6: Final answer
    x = 1,118,219.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.