Finding the Fourth Proportional to 912,145.11, 1,368,440.64 and 642,798.63
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Solution
The fourth proportional to 912,145.11, 1,368,440.64 and 642,798.63 is: 964,355.08
Step by Step Solution
- Step 1: Write the proportion equation
912,145.11 : 1,368,440.64 = 642,798.63 : x - Step 2: Convert to fraction form
912,145.11/1,368,440.64 = 642,798.63/x - Step 3: Cross multiply
912,145.11x = 1,368,440.64 × 642,798.63 - Step 4: Simplify right side
912,145.11x = 879,631,768,628.32 - Step 5: Solve for x
x = 879,631,768,628.32/912,145.11 - Step 6: Final answer
x = 964,355.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.