Finding the Fourth Proportional to 512,953.94, 707,913.08 and 283,506.28
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Solution
The fourth proportional to 512,953.94, 707,913.08 and 283,506.28 is: 391,258.92
Step by Step Solution
- Step 1: Write the proportion equation
512,953.94 : 707,913.08 = 283,506.28 : x - Step 2: Convert to fraction form
512,953.94/707,913.08 = 283,506.28/x - Step 3: Cross multiply
512,953.94x = 707,913.08 × 283,506.28 - Step 4: Simplify right side
512,953.94x = 200,697,803,874.14 - Step 5: Solve for x
x = 200,697,803,874.14/512,953.94 - Step 6: Final answer
x = 391,258.92
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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.