Finding the Fourth Proportional to 692,515.36, 1,038,907.68 and 266,020
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Solution
The fourth proportional to 692,515.36, 1,038,907.68 and 266,020 is: 399,081.72
Step by Step Solution
- Step 1: Write the proportion equation
692,515.36 : 1,038,907.68 = 266,020 : x - Step 2: Convert to fraction form
692,515.36/1,038,907.68 = 266,020/x - Step 3: Cross multiply
692,515.36x = 1,038,907.68 × 266,020 - Step 4: Simplify right side
692,515.36x = 276,370,221,033.60 - Step 5: Solve for x
x = 276,370,221,033.60/692,515.36 - Step 6: Final answer
x = 399,081.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.