Home / 439,946.43-607,126.05-238,742.43

Finding the Fourth Proportional to 439,946.43, 607,126.05 and 238,742.43

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Solution

The fourth proportional to 439,946.43, 607,126.05 and 238,742.43 is: 329,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,946.43 : 607,126.05 = 238,742.43 : x
  2. Step 2: Convert to fraction form
    439,946.43/607,126.05 = 238,742.43/x
  3. Step 3: Cross multiply
    439,946.43x = 607,126.05 × 238,742.43
  4. Step 4: Simplify right side
    439,946.43x = 144,946,748,493.30
  5. Step 5: Solve for x
    x = 144,946,748,493.30/439,946.43
  6. Step 6: Final answer
    x = 329,464.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.