Finding the Fourth Proportional to 554,129.25, 831,193.86 and 427,953.52
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Solution
The fourth proportional to 554,129.25, 831,193.86 and 427,953.52 is: 641,930.28
Step by Step Solution
- Step 1: Write the proportion equation
554,129.25 : 831,193.86 = 427,953.52 : x - Step 2: Convert to fraction form
554,129.25/831,193.86 = 427,953.52/x - Step 3: Cross multiply
554,129.25x = 831,193.86 × 427,953.52 - Step 4: Simplify right side
554,129.25x = 355,712,340,833.21 - Step 5: Solve for x
x = 355,712,340,833.21/554,129.25 - Step 6: Final answer
x = 641,930.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.