Finding the Fourth Proportional to 840,842.84, 1,160,362.81 and 458,869.62
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Solution
The fourth proportional to 840,842.84, 1,160,362.81 and 458,869.62 is: 633,239.91
Step by Step Solution
- Step 1: Write the proportion equation
840,842.84 : 1,160,362.81 = 458,869.62 : x - Step 2: Convert to fraction form
840,842.84/1,160,362.81 = 458,869.62/x - Step 3: Cross multiply
840,842.84x = 1,160,362.81 × 458,869.62 - Step 4: Simplify right side
840,842.84x = 532,455,240,539.66 - Step 5: Solve for x
x = 532,455,240,539.66/840,842.84 - Step 6: Final answer
x = 633,239.91
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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.