Finding the Fourth Proportional to 2,122,606.98, 2,931,143.76 and 1,348,486.74
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Solution
The fourth proportional to 2,122,606.98, 2,931,143.76 and 1,348,486.74 is: 1,862,148.07
Step by Step Solution
- Step 1: Write the proportion equation
2,122,606.98 : 2,931,143.76 = 1,348,486.74 : x - Step 2: Convert to fraction form
2,122,606.98/2,931,143.76 = 1,348,486.74/x - Step 3: Cross multiply
2,122,606.98x = 2,931,143.76 × 1,348,486.74 - Step 4: Simplify right side
2,122,606.98x = 3,952,608,493,393.74 - Step 5: Solve for x
x = 3,952,608,493,393.74/2,122,606.98 - Step 6: Final answer
x = 1,862,148.07
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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.