Finding the Fourth Proportional to 983,221.74, 1,356,975.36 and 553,585.59
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Solution
The fourth proportional to 983,221.74, 1,356,975.36 and 553,585.59 is: 764,020.95
Step by Step Solution
- Step 1: Write the proportion equation
983,221.74 : 1,356,975.36 = 553,585.59 : x - Step 2: Convert to fraction form
983,221.74/1,356,975.36 = 553,585.59/x - Step 3: Cross multiply
983,221.74x = 1,356,975.36 × 553,585.59 - Step 4: Simplify right side
983,221.74x = 751,202,005,281.06 - Step 5: Solve for x
x = 751,202,005,281.06/983,221.74 - Step 6: Final answer
x = 764,020.95
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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.