Finding the Fourth Proportional to 742,368.84, 1,024,471.70 and 402,837.09
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Solution
The fourth proportional to 742,368.84, 1,024,471.70 and 402,837.09 is: 555,916.65
Step by Step Solution
- Step 1: Write the proportion equation
742,368.84 : 1,024,471.70 = 402,837.09 : x - Step 2: Convert to fraction form
742,368.84/1,024,471.70 = 402,837.09/x - Step 3: Cross multiply
742,368.84x = 1,024,471.70 × 402,837.09 - Step 4: Simplify right side
742,368.84x = 412,695,198,415.35 - Step 5: Solve for x
x = 412,695,198,415.35/742,368.84 - Step 6: Final answer
x = 555,916.65
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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.