Home / 742,596.77-1,114,135.05-343,499.35

Finding the Fourth Proportional to 742,596.77, 1,114,135.05 and 343,499.35

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Solution

The fourth proportional to 742,596.77, 1,114,135.05 and 343,499.35 is: 515,359.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,596.77 : 1,114,135.05 = 343,499.35 : x
  2. Step 2: Convert to fraction form
    742,596.77/1,114,135.05 = 343,499.35/x
  3. Step 3: Cross multiply
    742,596.77x = 1,114,135.05 × 343,499.35
  4. Step 4: Simplify right side
    742,596.77x = 382,704,659,916.54
  5. Step 5: Solve for x
    x = 382,704,659,916.54/742,596.77
  6. Step 6: Final answer
    x = 515,359.99

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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.