Home / 830,090.55-1,245,135.83-469,891.65

Finding the Fourth Proportional to 830,090.55, 1,245,135.83 and 469,891.65

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Solution

The fourth proportional to 830,090.55, 1,245,135.83 and 469,891.65 is: 704,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,090.55 : 1,245,135.83 = 469,891.65 : x
  2. Step 2: Convert to fraction form
    830,090.55/1,245,135.83 = 469,891.65/x
  3. Step 3: Cross multiply
    830,090.55x = 1,245,135.83 × 469,891.65
  4. Step 4: Simplify right side
    830,090.55x = 585,078,927,283.36
  5. Step 5: Solve for x
    x = 585,078,927,283.36/830,090.55
  6. Step 6: Final answer
    x = 704,837.48

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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.