Finding the Fourth Proportional to 547,809.80, 821,714.70 and 508,929.80
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Solution
The fourth proportional to 547,809.80, 821,714.70 and 508,929.80 is: 763,394.70
Step by Step Solution
- Step 1: Write the proportion equation
547,809.80 : 821,714.70 = 508,929.80 : x - Step 2: Convert to fraction form
547,809.80/821,714.70 = 508,929.80/x - Step 3: Cross multiply
547,809.80x = 821,714.70 × 508,929.80 - Step 4: Simplify right side
547,809.80x = 418,195,097,928.06 - Step 5: Solve for x
x = 418,195,097,928.06/547,809.80 - Step 6: Final answer
x = 763,394.70
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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.