Finding the Fourth Proportional to 955,948.79, 1,319,226.11 and 520,378.66
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Solution
The fourth proportional to 955,948.79, 1,319,226.11 and 520,378.66 is: 718,131.68
Step by Step Solution
- Step 1: Write the proportion equation
955,948.79 : 1,319,226.11 = 520,378.66 : x - Step 2: Convert to fraction form
955,948.79/1,319,226.11 = 520,378.66/x - Step 3: Cross multiply
955,948.79x = 1,319,226.11 × 520,378.66 - Step 4: Simplify right side
955,948.79x = 686,497,109,458.85 - Step 5: Solve for x
x = 686,497,109,458.85/955,948.79 - Step 6: Final answer
x = 718,131.68
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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.