Finding the Fourth Proportional to 638,345.10, 880,669.08 and 366,314.70
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Solution
The fourth proportional to 638,345.10, 880,669.08 and 366,314.70 is: 505,372.45
Step by Step Solution
- Step 1: Write the proportion equation
638,345.10 : 880,669.08 = 366,314.70 : x - Step 2: Convert to fraction form
638,345.10/880,669.08 = 366,314.70/x - Step 3: Cross multiply
638,345.10x = 880,669.08 × 366,314.70 - Step 4: Simplify right side
638,345.10x = 322,602,029,839.48 - Step 5: Solve for x
x = 322,602,029,839.48/638,345.10 - Step 6: Final answer
x = 505,372.45
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1.5x scale
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.