Finding the Fourth Proportional to 2,153,506.91, 2,971,970.01 and 1,186,636.01
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Solution
The fourth proportional to 2,153,506.91, 2,971,970.01 and 1,186,636.01 is: 1,637,629.59
Step by Step Solution
- Step 1: Write the proportion equation
2,153,506.91 : 2,971,970.01 = 1,186,636.01 : x - Step 2: Convert to fraction form
2,153,506.91/2,971,970.01 = 1,186,636.01/x - Step 3: Cross multiply
2,153,506.91x = 2,971,970.01 × 1,186,636.01 - Step 4: Simplify right side
2,153,506.91x = 3,526,646,619,646.21 - Step 5: Solve for x
x = 3,526,646,619,646.21/2,153,506.91 - Step 6: Final answer
x = 1,637,629.59
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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.