Finding the Fourth Proportional to 2,190,927.68, 3,023,424.39 and 1,224,065.20
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Solution
The fourth proportional to 2,190,927.68, 3,023,424.39 and 1,224,065.20 is: 1,689,178.80
Step by Step Solution
- Step 1: Write the proportion equation
2,190,927.68 : 3,023,424.39 = 1,224,065.20 : x - Step 2: Convert to fraction form
2,190,927.68/3,023,424.39 = 1,224,065.20/x - Step 3: Cross multiply
2,190,927.68x = 3,023,424.39 × 1,224,065.20 - Step 4: Simplify right side
2,190,927.68x = 3,700,868,580,630.23 - Step 5: Solve for x
x = 3,700,868,580,630.23/2,190,927.68 - Step 6: Final answer
x = 1,689,178.80
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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.