Finding the Fourth Proportional to 4,681,881.72, 7,023,289.86 and 1,270,221.84
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Solution
The fourth proportional to 4,681,881.72, 7,023,289.86 and 1,270,221.84 is: 1,905,459.54
Step by Step Solution
- Step 1: Write the proportion equation
4,681,881.72 : 7,023,289.86 = 1,270,221.84 : x - Step 2: Convert to fraction form
4,681,881.72/7,023,289.86 = 1,270,221.84/x - Step 3: Cross multiply
4,681,881.72x = 7,023,289.86 × 1,270,221.84 - Step 4: Simplify right side
4,681,881.72x = 8,921,136,168,822.54 - Step 5: Solve for x
x = 8,921,136,168,822.54/4,681,881.72 - Step 6: Final answer
x = 1,905,459.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.