Finding the Fourth Proportional to 432,371.71, 645,718.94 and 368,511.31
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Solution
The fourth proportional to 432,371.71, 645,718.94 and 368,511.31 is: 550,347.60
Step by Step Solution
- Step 1: Write the proportion equation
432,371.71 : 645,718.94 = 368,511.31 : x - Step 2: Convert to fraction form
432,371.71/645,718.94 = 368,511.31/x - Step 3: Cross multiply
432,371.71x = 645,718.94 × 368,511.31 - Step 4: Simplify right side
432,371.71x = 237,954,732,471.21 - Step 5: Solve for x
x = 237,954,732,471.21/432,371.71 - Step 6: Final answer
x = 550,347.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.