Finding the Fourth Proportional to 668,309.55, 922,182.21 and 381,848.19
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Solution
The fourth proportional to 668,309.55, 922,182.21 and 381,848.19 is: 526,901.95
Step by Step Solution
- Step 1: Write the proportion equation
668,309.55 : 922,182.21 = 381,848.19 : x - Step 2: Convert to fraction form
668,309.55/922,182.21 = 381,848.19/x - Step 3: Cross multiply
668,309.55x = 922,182.21 × 381,848.19 - Step 4: Simplify right side
668,309.55x = 352,133,607,738.70 - Step 5: Solve for x
x = 352,133,607,738.70/668,309.55 - Step 6: Final answer
x = 526,901.95
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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.