Finding the Fourth Proportional to 552,946.10, 763,063.74 and 311,228.53
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Solution
The fourth proportional to 552,946.10, 763,063.74 and 311,228.53 is: 429,494.31
Step by Step Solution
- Step 1: Write the proportion equation
552,946.10 : 763,063.74 = 311,228.53 : x - Step 2: Convert to fraction form
552,946.10/763,063.74 = 311,228.53/x - Step 3: Cross multiply
552,946.10x = 763,063.74 × 311,228.53 - Step 4: Simplify right side
552,946.10x = 237,487,204,188.84 - Step 5: Solve for x
x = 237,487,204,188.84/552,946.10 - Step 6: Final answer
x = 429,494.31
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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.