Finding the Fourth Proportional to 708,418.51, 977,618.16 and 386,122.14
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Solution
The fourth proportional to 708,418.51, 977,618.16 and 386,122.14 is: 532,848.89
Step by Step Solution
- Step 1: Write the proportion equation
708,418.51 : 977,618.16 = 386,122.14 : x - Step 2: Convert to fraction form
708,418.51/977,618.16 = 386,122.14/x - Step 3: Cross multiply
708,418.51x = 977,618.16 × 386,122.14 - Step 4: Simplify right side
708,418.51x = 377,480,016,042.06 - Step 5: Solve for x
x = 377,480,016,042.06/708,418.51 - Step 6: Final answer
x = 532,848.89
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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.