Home / 1,089,638.46-1,503,722.07-637,191.90

Finding the Fourth Proportional to 1,089,638.46, 1,503,722.07 and 637,191.90

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Solution

The fourth proportional to 1,089,638.46, 1,503,722.07 and 637,191.90 is: 879,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,638.46 : 1,503,722.07 = 637,191.90 : x
  2. Step 2: Convert to fraction form
    1,089,638.46/1,503,722.07 = 637,191.90/x
  3. Step 3: Cross multiply
    1,089,638.46x = 1,503,722.07 × 637,191.90
  4. Step 4: Simplify right side
    1,089,638.46x = 958,159,522,855.23
  5. Step 5: Solve for x
    x = 958,159,522,855.23/1,089,638.46
  6. Step 6: Final answer
    x = 879,337.10

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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.