Home / 439,919.50-607,090.54-238,715.50

Finding the Fourth Proportional to 439,919.50, 607,090.54 and 238,715.50

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Solution

The fourth proportional to 439,919.50, 607,090.54 and 238,715.50 is: 329,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,919.50 : 607,090.54 = 238,715.50 : x
  2. Step 2: Convert to fraction form
    439,919.50/607,090.54 = 238,715.50/x
  3. Step 3: Cross multiply
    439,919.50x = 607,090.54 × 238,715.50
  4. Step 4: Simplify right side
    439,919.50x = 144,921,921,801.37
  5. Step 5: Solve for x
    x = 144,921,921,801.37/439,919.50
  6. Step 6: Final answer
    x = 329,428.27

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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.