Finding the Fourth Proportional to 651,803.10, 977,704.65 and 278,555.10
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Solution
The fourth proportional to 651,803.10, 977,704.65 and 278,555.10 is: 417,832.65
Step by Step Solution
- Step 1: Write the proportion equation
651,803.10 : 977,704.65 = 278,555.10 : x - Step 2: Convert to fraction form
651,803.10/977,704.65 = 278,555.10/x - Step 3: Cross multiply
651,803.10x = 977,704.65 × 278,555.10 - Step 4: Simplify right side
651,803.10x = 272,344,616,551.22 - Step 5: Solve for x
x = 272,344,616,551.22/651,803.10 - Step 6: Final answer
x = 417,832.65
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Similar ratio
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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.