Finding the Fourth Proportional to 457,297.84, 630,913.08 and 287,544.88
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Solution
The fourth proportional to 457,297.84, 630,913.08 and 287,544.88 is: 396,712.62
Step by Step Solution
- Step 1: Write the proportion equation
457,297.84 : 630,913.08 = 287,544.88 : x - Step 2: Convert to fraction form
457,297.84/630,913.08 = 287,544.88/x - Step 3: Cross multiply
457,297.84x = 630,913.08 × 287,544.88 - Step 4: Simplify right side
457,297.84x = 181,415,825,879.03 - Step 5: Solve for x
x = 181,415,825,879.03/457,297.84 - Step 6: Final answer
x = 396,712.62
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1.5x scale
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.