Finding the Fourth Proportional to 1,420,924.29, 1,960,903.74 and 776,384.48
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Solution
The fourth proportional to 1,420,924.29, 1,960,903.74 and 776,384.48 is: 1,071,425.99
Step by Step Solution
- Step 1: Write the proportion equation
1,420,924.29 : 1,960,903.74 = 776,384.48 : x - Step 2: Convert to fraction form
1,420,924.29/1,960,903.74 = 776,384.48/x - Step 3: Cross multiply
1,420,924.29x = 1,960,903.74 × 776,384.48 - Step 4: Simplify right side
1,420,924.29x = 1,522,415,220,705.44 - Step 5: Solve for x
x = 1,522,415,220,705.44/1,420,924.29 - Step 6: Final answer
x = 1,071,425.99
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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.