Finding the Fourth Proportional to 747,919.44, 1,121,547.06 and 215,316.09
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Solution
The fourth proportional to 747,919.44, 1,121,547.06 and 215,316.09 is: 322,878.53
Step by Step Solution
- Step 1: Write the proportion equation
747,919.44 : 1,121,547.06 = 215,316.09 : x - Step 2: Convert to fraction form
747,919.44/1,121,547.06 = 215,316.09/x - Step 3: Cross multiply
747,919.44x = 1,121,547.06 × 215,316.09 - Step 4: Simplify right side
747,919.44x = 241,487,127,710.20 - Step 5: Solve for x
x = 241,487,127,710.20/747,919.44 - Step 6: Final answer
x = 322,878.53
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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.