Finding the Fourth Proportional to 1,979,858.46, 2,730,792.99 and 1,817,039.58
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Solution
The fourth proportional to 1,979,858.46, 2,730,792.99 and 1,817,039.58 is: 2,506,219.03
Step by Step Solution
- Step 1: Write the proportion equation
1,979,858.46 : 2,730,792.99 = 1,817,039.58 : x - Step 2: Convert to fraction form
1,979,858.46/2,730,792.99 = 1,817,039.58/x - Step 3: Cross multiply
1,979,858.46x = 2,730,792.99 × 1,817,039.58 - Step 4: Simplify right side
1,979,858.46x = 4,961,958,947,616.55 - Step 5: Solve for x
x = 4,961,958,947,616.55/1,979,858.46 - Step 6: Final answer
x = 2,506,219.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.