Finding the Fourth Proportional to 668,303.55, 922,173.93 and 381,842.19
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Solution
The fourth proportional to 668,303.55, 922,173.93 and 381,842.19 is: 526,893.67
Step by Step Solution
- Step 1: Write the proportion equation
668,303.55 : 922,173.93 = 381,842.19 : x - Step 2: Convert to fraction form
668,303.55/922,173.93 = 381,842.19/x - Step 3: Cross multiply
668,303.55x = 922,173.93 × 381,842.19 - Step 4: Simplify right side
668,303.55x = 352,124,912,992.11 - Step 5: Solve for x
x = 352,124,912,992.11/668,303.55 - Step 6: Final answer
x = 526,893.67
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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.