Finding the Fourth Proportional to 5,739,712.48, 7,920,503.64 and 3,564,208.78
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Solution
The fourth proportional to 5,739,712.48, 7,920,503.64 and 3,564,208.78 is: 4,918,422.08
Step by Step Solution
- Step 1: Write the proportion equation
5,739,712.48 : 7,920,503.64 = 3,564,208.78 : x - Step 2: Convert to fraction form
5,739,712.48/7,920,503.64 = 3,564,208.78/x - Step 3: Cross multiply
5,739,712.48x = 7,920,503.64 × 3,564,208.78 - Step 4: Simplify right side
5,739,712.48x = 28,230,328,615,709.96 - Step 5: Solve for x
x = 28,230,328,615,709.96/5,739,712.48 - Step 6: Final answer
x = 4,918,422.08
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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.