Finding the Fourth Proportional to 498,074.74, 687,339.95 and 283,214.75
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Solution
The fourth proportional to 498,074.74, 687,339.95 and 283,214.75 is: 390,834.53
Step by Step Solution
- Step 1: Write the proportion equation
498,074.74 : 687,339.95 = 283,214.75 : x - Step 2: Convert to fraction form
498,074.74/687,339.95 = 283,214.75/x - Step 3: Cross multiply
498,074.74x = 687,339.95 × 283,214.75 - Step 4: Simplify right side
498,074.74x = 194,664,807,251.49 - Step 5: Solve for x
x = 194,664,807,251.49/498,074.74 - Step 6: Final answer
x = 390,834.53
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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.