Finding the Fourth Proportional to 817,340.81, 1,226,018.06 and 284,860.98
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Solution
The fourth proportional to 817,340.81, 1,226,018.06 and 284,860.98 is: 427,293.86
Step by Step Solution
- Step 1: Write the proportion equation
817,340.81 : 1,226,018.06 = 284,860.98 : x - Step 2: Convert to fraction form
817,340.81/1,226,018.06 = 284,860.98/x - Step 3: Cross multiply
817,340.81x = 1,226,018.06 × 284,860.98 - Step 4: Simplify right side
817,340.81x = 349,244,704,644.99 - Step 5: Solve for x
x = 349,244,704,644.99/817,340.81 - Step 6: Final answer
x = 427,293.86
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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.