Finding the Fourth Proportional to 638,898.65, 881,696.77 and 348,515.13
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Solution
The fourth proportional to 638,898.65, 881,696.77 and 348,515.13 is: 480,959.95
Step by Step Solution
- Step 1: Write the proportion equation
638,898.65 : 881,696.77 = 348,515.13 : x - Step 2: Convert to fraction form
638,898.65/881,696.77 = 348,515.13/x - Step 3: Cross multiply
638,898.65x = 881,696.77 × 348,515.13 - Step 4: Simplify right side
638,898.65x = 307,284,664,417.13 - Step 5: Solve for x
x = 307,284,664,417.13/638,898.65 - Step 6: Final answer
x = 480,959.95
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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.