Finding the Fourth Proportional to 492,693.12, 679,916.16 and 266,338.62
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Solution
The fourth proportional to 492,693.12, 679,916.16 and 266,338.62 is: 367,547.11
Step by Step Solution
- Step 1: Write the proportion equation
492,693.12 : 679,916.16 = 266,338.62 : x - Step 2: Convert to fraction form
492,693.12/679,916.16 = 266,338.62/x - Step 3: Cross multiply
492,693.12x = 679,916.16 × 266,338.62 - Step 4: Simplify right side
492,693.12x = 181,087,931,770.10 - Step 5: Solve for x
x = 181,087,931,770.10/492,693.12 - Step 6: Final answer
x = 367,547.11
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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.