Finding the Fourth Proportional to 651,685.80, 977,528.70 and 371,749.80
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Solution
The fourth proportional to 651,685.80, 977,528.70 and 371,749.80 is: 557,624.70
Step by Step Solution
- Step 1: Write the proportion equation
651,685.80 : 977,528.70 = 371,749.80 : x - Step 2: Convert to fraction form
651,685.80/977,528.70 = 371,749.80/x - Step 3: Cross multiply
651,685.80x = 977,528.70 × 371,749.80 - Step 4: Simplify right side
651,685.80x = 363,396,098,719.26 - Step 5: Solve for x
x = 363,396,098,719.26/651,685.80 - Step 6: Final answer
x = 557,624.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.