Finding the Fourth Proportional to 865,423.98, 1,298,258.82 and 266,434.92
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Solution
The fourth proportional to 865,423.98, 1,298,258.82 and 266,434.92 is: 399,690.20
Step by Step Solution
- Step 1: Write the proportion equation
865,423.98 : 1,298,258.82 = 266,434.92 : x - Step 2: Convert to fraction form
865,423.98/1,298,258.82 = 266,434.92/x - Step 3: Cross multiply
865,423.98x = 1,298,258.82 × 266,434.92 - Step 4: Simplify right side
865,423.98x = 345,901,484,845.99 - Step 5: Solve for x
x = 345,901,484,845.99/865,423.98 - Step 6: Final answer
x = 399,690.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.