Home / 1,036,805.80-1,555,208.70-438,442.60

Finding the Fourth Proportional to 1,036,805.80, 1,555,208.70 and 438,442.60

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Solution

The fourth proportional to 1,036,805.80, 1,555,208.70 and 438,442.60 is: 657,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,805.80 : 1,555,208.70 = 438,442.60 : x
  2. Step 2: Convert to fraction form
    1,036,805.80/1,555,208.70 = 438,442.60/x
  3. Step 3: Cross multiply
    1,036,805.80x = 1,555,208.70 × 438,442.60
  4. Step 4: Simplify right side
    1,036,805.80x = 681,869,745,970.62
  5. Step 5: Solve for x
    x = 681,869,745,970.62/1,036,805.80
  6. Step 6: Final answer
    x = 657,663.90

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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.