Finding the Fourth Proportional to 708,167.80, 977,258.92 and 385,880.68
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Solution
The fourth proportional to 708,167.80, 977,258.92 and 385,880.68 is: 532,508.45
Step by Step Solution
- Step 1: Write the proportion equation
708,167.80 : 977,258.92 = 385,880.68 : x - Step 2: Convert to fraction form
708,167.80/977,258.92 = 385,880.68/x - Step 3: Cross multiply
708,167.80x = 977,258.92 × 385,880.68 - Step 4: Simplify right side
708,167.80x = 377,105,336,585.67 - Step 5: Solve for x
x = 377,105,336,585.67/708,167.80 - Step 6: Final answer
x = 532,508.45
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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.