Finding the Fourth Proportional to 2,168,543.74, 2,992,607.93 and 1,201,690.18
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Solution
The fourth proportional to 2,168,543.74, 2,992,607.93 and 1,201,690.18 is: 1,658,342.18
Step by Step Solution
- Step 1: Write the proportion equation
2,168,543.74 : 2,992,607.93 = 1,201,690.18 : x - Step 2: Convert to fraction form
2,168,543.74/2,992,607.93 = 1,201,690.18/x - Step 3: Cross multiply
2,168,543.74x = 2,992,607.93 × 1,201,690.18 - Step 4: Simplify right side
2,168,543.74x = 3,596,187,562,071.13 - Step 5: Solve for x
x = 3,596,187,562,071.13/2,168,543.74 - Step 6: Final answer
x = 1,658,342.18
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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.