Finding the Fourth Proportional to 998,781.18, 1,378,317.36 and 539,895.73
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Solution
The fourth proportional to 998,781.18, 1,378,317.36 and 539,895.73 is: 745,055.75
Step by Step Solution
- Step 1: Write the proportion equation
998,781.18 : 1,378,317.36 = 539,895.73 : x - Step 2: Convert to fraction form
998,781.18/1,378,317.36 = 539,895.73/x - Step 3: Cross multiply
998,781.18x = 1,378,317.36 × 539,895.73 - Step 4: Simplify right side
998,781.18x = 744,147,658,412.03 - Step 5: Solve for x
x = 744,147,658,412.03/998,781.18 - Step 6: Final answer
x = 745,055.75
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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.