Home / 742,170.34-1,024,195.44-402,638.50

Finding the Fourth Proportional to 742,170.34, 1,024,195.44 and 402,638.50

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Solution

The fourth proportional to 742,170.34, 1,024,195.44 and 402,638.50 is: 555,641.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,170.34 : 1,024,195.44 = 402,638.50 : x
  2. Step 2: Convert to fraction form
    742,170.34/1,024,195.44 = 402,638.50/x
  3. Step 3: Cross multiply
    742,170.34x = 1,024,195.44 × 402,638.50
  4. Step 4: Simplify right side
    742,170.34x = 412,380,515,668.44
  5. Step 5: Solve for x
    x = 412,380,515,668.44/742,170.34
  6. Step 6: Final answer
    x = 555,641.33

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1.5x scale

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.