Finding the Fourth Proportional to 1,580,781.12, 2,371,168.12 and 1,221,474.48
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Solution
The fourth proportional to 1,580,781.12, 2,371,168.12 and 1,221,474.48 is: 1,832,208.97
Step by Step Solution
- Step 1: Write the proportion equation
1,580,781.12 : 2,371,168.12 = 1,221,474.48 : x - Step 2: Convert to fraction form
1,580,781.12/2,371,168.12 = 1,221,474.48/x - Step 3: Cross multiply
1,580,781.12x = 2,371,168.12 × 1,221,474.48 - Step 4: Simplify right side
1,580,781.12x = 2,896,321,346,369.58 - Step 5: Solve for x
x = 2,896,321,346,369.58/1,580,781.12 - Step 6: Final answer
x = 1,832,208.97
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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.