Home / 816,977.72-1,126,969.08-490,206.26

Finding the Fourth Proportional to 816,977.72, 1,126,969.08 and 490,206.26

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Solution

The fourth proportional to 816,977.72, 1,126,969.08 and 490,206.26 is: 676,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,977.72 : 1,126,969.08 = 490,206.26 : x
  2. Step 2: Convert to fraction form
    816,977.72/1,126,969.08 = 490,206.26/x
  3. Step 3: Cross multiply
    816,977.72x = 1,126,969.08 × 490,206.26
  4. Step 4: Simplify right side
    816,977.72x = 552,447,297,842.44
  5. Step 5: Solve for x
    x = 552,447,297,842.44/816,977.72
  6. Step 6: Final answer
    x = 676,208.52

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1.5x scale

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.