Finding the Fourth Proportional to 497,590.26, 686,648.61 and 282,700.50
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Solution
The fourth proportional to 497,590.26, 686,648.61 and 282,700.50 is: 390,111.95
Step by Step Solution
- Step 1: Write the proportion equation
497,590.26 : 686,648.61 = 282,700.50 : x - Step 2: Convert to fraction form
497,590.26/686,648.61 = 282,700.50/x - Step 3: Cross multiply
497,590.26x = 686,648.61 × 282,700.50 - Step 4: Simplify right side
497,590.26x = 194,115,905,371.31 - Step 5: Solve for x
x = 194,115,905,371.31/497,590.26 - Step 6: Final answer
x = 390,111.95
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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.