Finding the Fourth Proportional to 875,356.79, 1,208,988.83 and 588,378.65
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Solution
The fourth proportional to 875,356.79, 1,208,988.83 and 588,378.65 is: 812,632.31
Step by Step Solution
- Step 1: Write the proportion equation
875,356.79 : 1,208,988.83 = 588,378.65 : x - Step 2: Convert to fraction form
875,356.79/1,208,988.83 = 588,378.65/x - Step 3: Cross multiply
875,356.79x = 1,208,988.83 × 588,378.65 - Step 4: Simplify right side
875,356.79x = 711,343,215,741.06 - Step 5: Solve for x
x = 711,343,215,741.06/875,356.79 - Step 6: Final answer
x = 812,632.31
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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.