Finding the Fourth Proportional to 2,124,817.23, 2,931,415.43 and 1,307,602.14
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Solution
The fourth proportional to 2,124,817.23, 2,931,415.43 and 1,307,602.14 is: 1,803,978.73
Step by Step Solution
- Step 1: Write the proportion equation
2,124,817.23 : 2,931,415.43 = 1,307,602.14 : x - Step 2: Convert to fraction form
2,124,817.23/2,931,415.43 = 1,307,602.14/x - Step 3: Cross multiply
2,124,817.23x = 2,931,415.43 × 1,307,602.14 - Step 4: Simplify right side
2,124,817.23x = 3,833,125,089,497.02 - Step 5: Solve for x
x = 3,833,125,089,497.02/2,124,817.23 - Step 6: Final answer
x = 1,803,978.73
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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.