Finding the Fourth Proportional to 991,930.74, 1,368,878.04 and 539,231.46
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Solution
The fourth proportional to 991,930.74, 1,368,878.04 and 539,231.46 is: 744,146.82
Step by Step Solution
- Step 1: Write the proportion equation
991,930.74 : 1,368,878.04 = 539,231.46 : x - Step 2: Convert to fraction form
991,930.74/1,368,878.04 = 539,231.46/x - Step 3: Cross multiply
991,930.74x = 1,368,878.04 × 539,231.46 - Step 4: Simplify right side
991,930.74x = 738,142,104,071.14 - Step 5: Solve for x
x = 738,142,104,071.14/991,930.74 - Step 6: Final answer
x = 744,146.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.