Finding the Fourth Proportional to 671,742.18, 926,962.19 and 369,936.18
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Solution
The fourth proportional to 671,742.18, 926,962.19 and 369,936.18 is: 510,488.79
Step by Step Solution
- Step 1: Write the proportion equation
671,742.18 : 926,962.19 = 369,936.18 : x - Step 2: Convert to fraction form
671,742.18/926,962.19 = 369,936.18/x - Step 3: Cross multiply
671,742.18x = 926,962.19 × 369,936.18 - Step 4: Simplify right side
671,742.18x = 342,916,846,938.22 - Step 5: Solve for x
x = 342,916,846,938.22/671,742.18 - Step 6: Final answer
x = 510,488.79
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1.5x scale
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.