Finding the Fourth Proportional to 855,860.74, 1,283,916.30 and 256,869.28
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Solution
The fourth proportional to 855,860.74, 1,283,916.30 and 256,869.28 is: 385,341.49
Step by Step Solution
- Step 1: Write the proportion equation
855,860.74 : 1,283,916.30 = 256,869.28 : x - Step 2: Convert to fraction form
855,860.74/1,283,916.30 = 256,869.28/x - Step 3: Cross multiply
855,860.74x = 1,283,916.30 × 256,869.28 - Step 4: Simplify right side
855,860.74x = 329,798,655,561.26 - Step 5: Solve for x
x = 329,798,655,561.26/855,860.74 - Step 6: Final answer
x = 385,341.49
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1.5x scale
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.