Finding the Fourth Proportional to 715,702.10, 987,670.94 and 409,783.17
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Solution
The fourth proportional to 715,702.10, 987,670.94 and 409,783.17 is: 565,501.95
Step by Step Solution
- Step 1: Write the proportion equation
715,702.10 : 987,670.94 = 409,783.17 : x - Step 2: Convert to fraction form
715,702.10/987,670.94 = 409,783.17/x - Step 3: Cross multiply
715,702.10x = 987,670.94 × 409,783.17 - Step 4: Simplify right side
715,702.10x = 404,730,928,710.08 - Step 5: Solve for x
x = 404,730,928,710.08/715,702.10 - Step 6: Final answer
x = 565,501.95
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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.