Finding the Fourth Proportional to 537,878.68, 742,299.86 and 305,321.99
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Solution
The fourth proportional to 537,878.68, 742,299.86 and 305,321.99 is: 421,359.82
Step by Step Solution
- Step 1: Write the proportion equation
537,878.68 : 742,299.86 = 305,321.99 : x - Step 2: Convert to fraction form
537,878.68/742,299.86 = 305,321.99/x - Step 3: Cross multiply
537,878.68x = 742,299.86 × 305,321.99 - Step 4: Simplify right side
537,878.68x = 226,640,465,193.81 - Step 5: Solve for x
x = 226,640,465,193.81/537,878.68 - Step 6: Final answer
x = 421,359.82
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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.