Finding the Fourth Proportional to 497,478.21, 686,522.30 and 282,630.08
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Solution
The fourth proportional to 497,478.21, 686,522.30 and 282,630.08 is: 390,030.85
Step by Step Solution
- Step 1: Write the proportion equation
497,478.21 : 686,522.30 = 282,630.08 : x - Step 2: Convert to fraction form
497,478.21/686,522.30 = 282,630.08/x - Step 3: Cross multiply
497,478.21x = 686,522.30 × 282,630.08 - Step 4: Simplify right side
497,478.21x = 194,031,847,725.02 - Step 5: Solve for x
x = 194,031,847,725.02/497,478.21 - Step 6: Final answer
x = 390,030.85
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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.