Finding the Fourth Proportional to 739,182.55, 1,020,071.05 and 399,649.99
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Solution
The fourth proportional to 739,182.55, 1,020,071.05 and 399,649.99 is: 551,516.52
Step by Step Solution
- Step 1: Write the proportion equation
739,182.55 : 1,020,071.05 = 399,649.99 : x - Step 2: Convert to fraction form
739,182.55/1,020,071.05 = 399,649.99/x - Step 3: Cross multiply
739,182.55x = 1,020,071.05 × 399,649.99 - Step 4: Simplify right side
739,182.55x = 407,671,384,931.79 - Step 5: Solve for x
x = 407,671,384,931.79/739,182.55 - Step 6: Final answer
x = 551,516.52
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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.