Home / 742,059.80-1,113,704.10-343,314.20

Finding the Fourth Proportional to 742,059.80, 1,113,704.10 and 343,314.20

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Solution

The fourth proportional to 742,059.80, 1,113,704.10 and 343,314.20 is: 515,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,059.80 : 1,113,704.10 = 343,314.20 : x
  2. Step 2: Convert to fraction form
    742,059.80/1,113,704.10 = 343,314.20/x
  3. Step 3: Cross multiply
    742,059.80x = 1,113,704.10 × 343,314.20
  4. Step 4: Simplify right side
    742,059.80x = 382,350,432,128.22
  5. Step 5: Solve for x
    x = 382,350,432,128.22/742,059.80
  6. Step 6: Final answer
    x = 515,255.55

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Double scale
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1.5x scale

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.