Finding the Fourth Proportional to 983,544.12, 1,357,420.14 and 553,908.24
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Solution
The fourth proportional to 983,544.12, 1,357,420.14 and 553,908.24 is: 764,466.16
Step by Step Solution
- Step 1: Write the proportion equation
983,544.12 : 1,357,420.14 = 553,908.24 : x - Step 2: Convert to fraction form
983,544.12/1,357,420.14 = 553,908.24/x - Step 3: Cross multiply
983,544.12x = 1,357,420.14 × 553,908.24 - Step 4: Simplify right side
983,544.12x = 751,886,200,687.95 - Step 5: Solve for x
x = 751,886,200,687.95/983,544.12 - Step 6: Final answer
x = 764,466.16
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1.5x scale
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.