Finding the Fourth Proportional to 688,326.24, 1,032,635.14 and 215,047.28
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Solution
The fourth proportional to 688,326.24, 1,032,635.14 and 215,047.28 is: 322,616.46
Step by Step Solution
- Step 1: Write the proportion equation
688,326.24 : 1,032,635.14 = 215,047.28 : x - Step 2: Convert to fraction form
688,326.24/1,032,635.14 = 215,047.28/x - Step 3: Cross multiply
688,326.24x = 1,032,635.14 × 215,047.28 - Step 4: Simplify right side
688,326.24x = 222,065,378,089.42 - Step 5: Solve for x
x = 222,065,378,089.42/688,326.24 - Step 6: Final answer
x = 322,616.46
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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.