Finding the Fourth Proportional to 411,335.30, 612,508.44 and 396,201.66
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Solution
The fourth proportional to 411,335.30, 612,508.44 and 396,201.66 is: 589,973.35
Step by Step Solution
- Step 1: Write the proportion equation
411,335.30 : 612,508.44 = 396,201.66 : x - Step 2: Convert to fraction form
411,335.30/612,508.44 = 396,201.66/x - Step 3: Cross multiply
411,335.30x = 612,508.44 × 396,201.66 - Step 4: Simplify right side
411,335.30x = 242,676,860,692.01 - Step 5: Solve for x
x = 242,676,860,692.01/411,335.30 - Step 6: Final answer
x = 589,973.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.