Home / 1,300,245.80-1,950,368.70-829,020.20

Finding the Fourth Proportional to 1,300,245.80, 1,950,368.70 and 829,020.20

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Solution

The fourth proportional to 1,300,245.80, 1,950,368.70 and 829,020.20 is: 1,243,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,245.80 : 1,950,368.70 = 829,020.20 : x
  2. Step 2: Convert to fraction form
    1,300,245.80/1,950,368.70 = 829,020.20/x
  3. Step 3: Cross multiply
    1,300,245.80x = 1,950,368.70 × 829,020.20
  4. Step 4: Simplify right side
    1,300,245.80x = 1,616,895,049,747.74
  5. Step 5: Solve for x
    x = 1,616,895,049,747.74/1,300,245.80
  6. Step 6: Final answer
    x = 1,243,530.30

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Double scale
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Similar ratio
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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.