Finding the Fourth Proportional to 2,153,267.62, 2,971,641.53 and 1,186,397.66
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Solution
The fourth proportional to 2,153,267.62, 2,971,641.53 and 1,186,397.66 is: 1,637,301.62
Step by Step Solution
- Step 1: Write the proportion equation
2,153,267.62 : 2,971,641.53 = 1,186,397.66 : x - Step 2: Convert to fraction form
2,153,267.62/2,971,641.53 = 1,186,397.66/x - Step 3: Cross multiply
2,153,267.62x = 2,971,641.53 × 1,186,397.66 - Step 4: Simplify right side
2,153,267.62x = 3,525,548,567,945.92 - Step 5: Solve for x
x = 3,525,548,567,945.92/2,153,267.62 - Step 6: Final answer
x = 1,637,301.62
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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.