Finding the Fourth Proportional to 805,191.84, 1,110,139.92 and 503,275.68
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Solution
The fourth proportional to 805,191.84, 1,110,139.92 and 503,275.68 is: 693,879.89
Step by Step Solution
- Step 1: Write the proportion equation
805,191.84 : 1,110,139.92 = 503,275.68 : x - Step 2: Convert to fraction form
805,191.84/1,110,139.92 = 503,275.68/x - Step 3: Cross multiply
805,191.84x = 1,110,139.92 × 503,275.68 - Step 4: Simplify right side
805,191.84x = 558,706,423,133.15 - Step 5: Solve for x
x = 558,706,423,133.15/805,191.84 - Step 6: Final answer
x = 693,879.89
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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.