Finding the Fourth Proportional to 688,603.63, 1,032,964.98 and 189,967.63
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Solution
The fourth proportional to 688,603.63, 1,032,964.98 and 189,967.63 is: 284,967.86
Step by Step Solution
- Step 1: Write the proportion equation
688,603.63 : 1,032,964.98 = 189,967.63 : x - Step 2: Convert to fraction form
688,603.63/1,032,964.98 = 189,967.63/x - Step 3: Cross multiply
688,603.63x = 1,032,964.98 × 189,967.63 - Step 4: Simplify right side
688,603.63x = 196,229,903,008.93 - Step 5: Solve for x
x = 196,229,903,008.93/688,603.63 - Step 6: Final answer
x = 284,967.86
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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.