Home / 1,510,690.80-2,084,747.85-831,627.30

Finding the Fourth Proportional to 1,510,690.80, 2,084,747.85 and 831,627.30

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Solution

The fourth proportional to 1,510,690.80, 2,084,747.85 and 831,627.30 is: 1,147,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,690.80 : 2,084,747.85 = 831,627.30 : x
  2. Step 2: Convert to fraction form
    1,510,690.80/2,084,747.85 = 831,627.30/x
  3. Step 3: Cross multiply
    1,510,690.80x = 2,084,747.85 × 831,627.30
  4. Step 4: Simplify right side
    1,510,690.80x = 1,733,733,225,676.31
  5. Step 5: Solve for x
    x = 1,733,733,225,676.31/1,510,690.80
  6. Step 6: Final answer
    x = 1,147,642.67

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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.