Finding the Fourth Proportional to 498,038.75, 687,224.12 and 283,155.06
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Solution
The fourth proportional to 498,038.75, 687,224.12 and 283,155.06 is: 390,714.55
Step by Step Solution
- Step 1: Write the proportion equation
498,038.75 : 687,224.12 = 283,155.06 : x - Step 2: Convert to fraction form
498,038.75/687,224.12 = 283,155.06/x - Step 3: Cross multiply
498,038.75x = 687,224.12 × 283,155.06 - Step 4: Simplify right side
498,038.75x = 194,590,986,932.05 - Step 5: Solve for x
x = 194,590,986,932.05/498,038.75 - Step 6: Final answer
x = 390,714.55
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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.