Home / 534,128.20-801,645.90-218,811.40

Finding the Fourth Proportional to 534,128.20, 801,645.90 and 218,811.40

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Solution

The fourth proportional to 534,128.20, 801,645.90 and 218,811.40 is: 328,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,128.20 : 801,645.90 = 218,811.40 : x
  2. Step 2: Convert to fraction form
    534,128.20/801,645.90 = 218,811.40/x
  3. Step 3: Cross multiply
    534,128.20x = 801,645.90 × 218,811.40
  4. Step 4: Simplify right side
    534,128.20x = 175,409,261,683.26
  5. Step 5: Solve for x
    x = 175,409,261,683.26/534,128.20
  6. Step 6: Final answer
    x = 328,402.92

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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.