Home / 579,738.60-869,564.70-242,692.20

Finding the Fourth Proportional to 579,738.60, 869,564.70 and 242,692.20

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Solution

The fourth proportional to 579,738.60, 869,564.70 and 242,692.20 is: 364,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,738.60 : 869,564.70 = 242,692.20 : x
  2. Step 2: Convert to fraction form
    579,738.60/869,564.70 = 242,692.20/x
  3. Step 3: Cross multiply
    579,738.60x = 869,564.70 × 242,692.20
  4. Step 4: Simplify right side
    579,738.60x = 211,036,570,085.34
  5. Step 5: Solve for x
    x = 211,036,570,085.34/579,738.60
  6. Step 6: Final answer
    x = 364,020.22

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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.