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Finding the Fourth Proportional to 441,012.36, 660,683.93 and 260,558.20

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Solution

The fourth proportional to 441,012.36, 660,683.93 and 260,558.20 is: 390,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,012.36 : 660,683.93 = 260,558.20 : x
  2. Step 2: Convert to fraction form
    441,012.36/660,683.93 = 260,558.20/x
  3. Step 3: Cross multiply
    441,012.36x = 660,683.93 × 260,558.20
  4. Step 4: Simplify right side
    441,012.36x = 172,146,612,266.31
  5. Step 5: Solve for x
    x = 172,146,612,266.31/441,012.36
  6. Step 6: Final answer
    x = 390,344.19

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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.