Finding the Fourth Proportional to 3,878,280.19, 5,818,530.26 and 1,320,058.81
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Solution
The fourth proportional to 3,878,280.19, 5,818,530.26 and 1,320,058.81 is: 1,980,466.02
Step by Step Solution
- Step 1: Write the proportion equation
3,878,280.19 : 5,818,530.26 = 1,320,058.81 : x - Step 2: Convert to fraction form
3,878,280.19/5,818,530.26 = 1,320,058.81/x - Step 3: Cross multiply
3,878,280.19x = 5,818,530.26 × 1,320,058.81 - Step 4: Simplify right side
3,878,280.19x = 7,680,802,124,364.30 - Step 5: Solve for x
x = 7,680,802,124,364.30/3,878,280.19 - Step 6: Final answer
x = 1,980,466.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.