Finding the Fourth Proportional to 1,046,628.64, 1,444,572.63 and 638,643.08
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Solution
The fourth proportional to 1,046,628.64, 1,444,572.63 and 638,643.08 is: 881,464.81
Step by Step Solution
- Step 1: Write the proportion equation
1,046,628.64 : 1,444,572.63 = 638,643.08 : x - Step 2: Convert to fraction form
1,046,628.64/1,444,572.63 = 638,643.08/x - Step 3: Cross multiply
1,046,628.64x = 1,444,572.63 × 638,643.08 - Step 4: Simplify right side
1,046,628.64x = 922,566,317,318.33 - Step 5: Solve for x
x = 922,566,317,318.33/1,046,628.64 - Step 6: Final answer
x = 881,464.81
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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.