Finding the Fourth Proportional to 2,239,125.84, 3,090,077.64 and 1,272,420.72
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Solution
The fourth proportional to 2,239,125.84, 3,090,077.64 and 1,272,420.72 is: 1,755,988.32
Step by Step Solution
- Step 1: Write the proportion equation
2,239,125.84 : 3,090,077.64 = 1,272,420.72 : x - Step 2: Convert to fraction form
2,239,125.84/3,090,077.64 = 1,272,420.72/x - Step 3: Cross multiply
2,239,125.84x = 3,090,077.64 × 1,272,420.72 - Step 4: Simplify right side
2,239,125.84x = 3,931,878,815,544.70 - Step 5: Solve for x
x = 3,931,878,815,544.70/2,239,125.84 - Step 6: Final answer
x = 1,755,988.32
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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.