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Finding the Fourth Proportional to 384,489.81, 526,742.28 and 370,114.35

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Solution

The fourth proportional to 384,489.81, 526,742.28 and 370,114.35 is: 507,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,489.81 : 526,742.28 = 370,114.35 : x
  2. Step 2: Convert to fraction form
    384,489.81/526,742.28 = 370,114.35/x
  3. Step 3: Cross multiply
    384,489.81x = 526,742.28 × 370,114.35
  4. Step 4: Simplify right side
    384,489.81x = 194,954,876,579.72
  5. Step 5: Solve for x
    x = 194,954,876,579.72/384,489.81
  6. Step 6: Final answer
    x = 507,048.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.