Home / 438,923.07-658,402.89-214,015.63

Finding the Fourth Proportional to 438,923.07, 658,402.89 and 214,015.63

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Solution

The fourth proportional to 438,923.07, 658,402.89 and 214,015.63 is: 321,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,923.07 : 658,402.89 = 214,015.63 : x
  2. Step 2: Convert to fraction form
    438,923.07/658,402.89 = 214,015.63/x
  3. Step 3: Cross multiply
    438,923.07x = 658,402.89 × 214,015.63
  4. Step 4: Simplify right side
    438,923.07x = 140,908,509,297.17
  5. Step 5: Solve for x
    x = 140,908,509,297.17/438,923.07
  6. Step 6: Final answer
    x = 321,032.36

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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.