Home / 692,477.12-1,038,353.85-313,216.67

Finding the Fourth Proportional to 692,477.12, 1,038,353.85 and 313,216.67

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Solution

The fourth proportional to 692,477.12, 1,038,353.85 and 313,216.67 is: 469,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,477.12 : 1,038,353.85 = 313,216.67 : x
  2. Step 2: Convert to fraction form
    692,477.12/1,038,353.85 = 313,216.67/x
  3. Step 3: Cross multiply
    692,477.12x = 1,038,353.85 × 313,216.67
  4. Step 4: Simplify right side
    692,477.12x = 325,229,729,986.91
  5. Step 5: Solve for x
    x = 325,229,729,986.91/692,477.12
  6. Step 6: Final answer
    x = 469,661.34

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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.