Finding the Fourth Proportional to 708,286.04, 977,421.84 and 385,998.92
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Solution
The fourth proportional to 708,286.04, 977,421.84 and 385,998.92 is: 532,671.48
Step by Step Solution
- Step 1: Write the proportion equation
708,286.04 : 977,421.84 = 385,998.92 : x - Step 2: Convert to fraction form
708,286.04/977,421.84 = 385,998.92/x - Step 3: Cross multiply
708,286.04x = 977,421.84 × 385,998.92 - Step 4: Simplify right side
708,286.04x = 377,283,774,624.41 - Step 5: Solve for x
x = 377,283,774,624.41/708,286.04 - Step 6: Final answer
x = 532,671.48
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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.