Finding the Fourth Proportional to 878,444.20, 1,317,666.30 and 783,965.80
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Solution
The fourth proportional to 878,444.20, 1,317,666.30 and 783,965.80 is: 1,175,948.70
Step by Step Solution
- Step 1: Write the proportion equation
878,444.20 : 1,317,666.30 = 783,965.80 : x - Step 2: Convert to fraction form
878,444.20/1,317,666.30 = 783,965.80/x - Step 3: Cross multiply
878,444.20x = 1,317,666.30 × 783,965.80 - Step 4: Simplify right side
878,444.20x = 1,033,005,315,012.54 - Step 5: Solve for x
x = 1,033,005,315,012.54/878,444.20 - Step 6: Final answer
x = 1,175,948.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.