Finding the Fourth Proportional to 5,708,620.80, 7,878,260.88 and 3,771,483.12
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Solution
The fourth proportional to 5,708,620.80, 7,878,260.88 and 3,771,483.12 is: 5,204,887.30
Step by Step Solution
- Step 1: Write the proportion equation
5,708,620.80 : 7,878,260.88 = 3,771,483.12 : x - Step 2: Convert to fraction form
5,708,620.80/7,878,260.88 = 3,771,483.12/x - Step 3: Cross multiply
5,708,620.80x = 7,878,260.88 × 3,771,483.12 - Step 4: Simplify right side
5,708,620.80x = 29,712,727,923,876.35 - Step 5: Solve for x
x = 29,712,727,923,876.35/5,708,620.80 - Step 6: Final answer
x = 5,204,887.30
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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.