Home / 742,024.80-1,113,651.60-343,279.20

Finding the Fourth Proportional to 742,024.80, 1,113,651.60 and 343,279.20

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Solution

The fourth proportional to 742,024.80, 1,113,651.60 and 343,279.20 is: 515,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,024.80 : 1,113,651.60 = 343,279.20 : x
  2. Step 2: Convert to fraction form
    742,024.80/1,113,651.60 = 343,279.20/x
  3. Step 3: Cross multiply
    742,024.80x = 1,113,651.60 × 343,279.20
  4. Step 4: Simplify right side
    742,024.80x = 382,293,430,326.72
  5. Step 5: Solve for x
    x = 382,293,430,326.72/742,024.80
  6. Step 6: Final answer
    x = 515,203.04

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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.