Finding the Fourth Proportional to 963,087.40, 1,329,281.78 and 640,811.08
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Solution
The fourth proportional to 963,087.40, 1,329,281.78 and 640,811.08 is: 884,466.45
Step by Step Solution
- Step 1: Write the proportion equation
963,087.40 : 1,329,281.78 = 640,811.08 : x - Step 2: Convert to fraction form
963,087.40/1,329,281.78 = 640,811.08/x - Step 3: Cross multiply
963,087.40x = 1,329,281.78 × 640,811.08 - Step 4: Simplify right side
963,087.40x = 851,818,493,066.12 - Step 5: Solve for x
x = 851,818,493,066.12/963,087.40 - Step 6: Final answer
x = 884,466.45
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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.