Home / 1,078,790.72-1,617,905.86-320,453.93

Finding the Fourth Proportional to 1,078,790.72, 1,617,905.86 and 320,453.93

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Solution

The fourth proportional to 1,078,790.72, 1,617,905.86 and 320,453.93 is: 480,597.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,790.72 : 1,617,905.86 = 320,453.93 : x
  2. Step 2: Convert to fraction form
    1,078,790.72/1,617,905.86 = 320,453.93/x
  3. Step 3: Cross multiply
    1,078,790.72x = 1,617,905.86 × 320,453.93
  4. Step 4: Simplify right side
    1,078,790.72x = 518,464,294,450.66
  5. Step 5: Solve for x
    x = 518,464,294,450.66/1,078,790.72
  6. Step 6: Final answer
    x = 480,597.66

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1.5x scale

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.