Finding the Fourth Proportional to 561,406.35, 774,741.74 and 306,752.07
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Solution
The fourth proportional to 561,406.35, 774,741.74 and 306,752.07 is: 423,318.39
Step by Step Solution
- Step 1: Write the proportion equation
561,406.35 : 774,741.74 = 306,752.07 : x - Step 2: Convert to fraction form
561,406.35/774,741.74 = 306,752.07/x - Step 3: Cross multiply
561,406.35x = 774,741.74 × 306,752.07 - Step 4: Simplify right side
561,406.35x = 237,653,632,460.40 - Step 5: Solve for x
x = 237,653,632,460.40/561,406.35 - Step 6: Final answer
x = 423,318.39
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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.