Finding the Fourth Proportional to 885,299.68, 1,221,631.12 and 503,251.68
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Solution
The fourth proportional to 885,299.68, 1,221,631.12 and 503,251.68 is: 694,440.46
Step by Step Solution
- Step 1: Write the proportion equation
885,299.68 : 1,221,631.12 = 503,251.68 : x - Step 2: Convert to fraction form
885,299.68/1,221,631.12 = 503,251.68/x - Step 3: Cross multiply
885,299.68x = 1,221,631.12 × 503,251.68 - Step 4: Simplify right side
885,299.68x = 614,787,913,480.28 - Step 5: Solve for x
x = 614,787,913,480.28/885,299.68 - Step 6: Final answer
x = 694,440.46
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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.