Home / 829,931.70-1,244,897.55-818,121.90

Finding the Fourth Proportional to 829,931.70, 1,244,897.55 and 818,121.90

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Solution

The fourth proportional to 829,931.70, 1,244,897.55 and 818,121.90 is: 1,227,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,931.70 : 1,244,897.55 = 818,121.90 : x
  2. Step 2: Convert to fraction form
    829,931.70/1,244,897.55 = 818,121.90/x
  3. Step 3: Cross multiply
    829,931.70x = 1,244,897.55 × 818,121.90
  4. Step 4: Simplify right side
    829,931.70x = 1,018,477,948,911.35
  5. Step 5: Solve for x
    x = 1,018,477,948,911.35/829,931.70
  6. Step 6: Final answer
    x = 1,227,182.85

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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.