Finding the Fourth Proportional to 615,893.60, 849,890.84 and 340,239.28
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Solution
The fourth proportional to 615,893.60, 849,890.84 and 340,239.28 is: 469,506.82
Step by Step Solution
- Step 1: Write the proportion equation
615,893.60 : 849,890.84 = 340,239.28 : x - Step 2: Convert to fraction form
615,893.60/849,890.84 = 340,239.28/x - Step 3: Cross multiply
615,893.60x = 849,890.84 × 340,239.28 - Step 4: Simplify right side
615,893.60x = 289,166,247,480.20 - Step 5: Solve for x
x = 289,166,247,480.20/615,893.60 - Step 6: Final answer
x = 469,506.82
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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.