Finding the Fourth Proportional to 325,637.20, 487,807.80 and 286,670.80
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Solution
The fourth proportional to 325,637.20, 487,807.80 and 286,670.80 is: 429,435.74
Step by Step Solution
- Step 1: Write the proportion equation
325,637.20 : 487,807.80 = 286,670.80 : x - Step 2: Convert to fraction form
325,637.20/487,807.80 = 286,670.80/x - Step 3: Cross multiply
325,637.20x = 487,807.80 × 286,670.80 - Step 4: Simplify right side
325,637.20x = 139,840,252,272.24 - Step 5: Solve for x
x = 139,840,252,272.24/325,637.20 - Step 6: Final answer
x = 429,435.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.