Finding the Fourth Proportional to 418,925.08, 578,243.58 and 284,866.84
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Solution
The fourth proportional to 418,925.08, 578,243.58 and 284,866.84 is: 393,202.58
Step by Step Solution
- Step 1: Write the proportion equation
418,925.08 : 578,243.58 = 284,866.84 : x - Step 2: Convert to fraction form
418,925.08/578,243.58 = 284,866.84/x - Step 3: Cross multiply
418,925.08x = 578,243.58 × 284,866.84 - Step 4: Simplify right side
418,925.08x = 164,722,421,384.89 - Step 5: Solve for x
x = 164,722,421,384.89/418,925.08 - Step 6: Final answer
x = 393,202.58
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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.