Home / 1,213,977.28-1,675,288.96-670,113.40

Finding the Fourth Proportional to 1,213,977.28, 1,675,288.96 and 670,113.40

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Solution

The fourth proportional to 1,213,977.28, 1,675,288.96 and 670,113.40 is: 924,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,977.28 : 1,675,288.96 = 670,113.40 : x
  2. Step 2: Convert to fraction form
    1,213,977.28/1,675,288.96 = 670,113.40/x
  3. Step 3: Cross multiply
    1,213,977.28x = 1,675,288.96 × 670,113.40
  4. Step 4: Simplify right side
    1,213,977.28x = 1,122,633,580,968.06
  5. Step 5: Solve for x
    x = 1,122,633,580,968.06/1,213,977.28
  6. Step 6: Final answer
    x = 924,756.67

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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.