Finding the Fourth Proportional to 427,434.76, 589,860.39 and 236,461.06
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Solution
The fourth proportional to 427,434.76, 589,860.39 and 236,461.06 is: 326,316.50
Step by Step Solution
- Step 1: Write the proportion equation
427,434.76 : 589,860.39 = 236,461.06 : x - Step 2: Convert to fraction form
427,434.76/589,860.39 = 236,461.06/x - Step 3: Cross multiply
427,434.76x = 589,860.39 × 236,461.06 - Step 4: Simplify right side
427,434.76x = 139,479,013,071.41 - Step 5: Solve for x
x = 139,479,013,071.41/427,434.76 - Step 6: Final answer
x = 326,316.50
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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.