Finding the Fourth Proportional to 458,511.70, 686,455.35 and 406,023.70
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Solution
The fourth proportional to 458,511.70, 686,455.35 and 406,023.70 is: 607,873.56
Step by Step Solution
- Step 1: Write the proportion equation
458,511.70 : 686,455.35 = 406,023.70 : x - Step 2: Convert to fraction form
458,511.70/686,455.35 = 406,023.70/x - Step 3: Cross multiply
458,511.70x = 686,455.35 × 406,023.70 - Step 4: Simplify right side
458,511.70x = 278,717,141,091.80 - Step 5: Solve for x
x = 278,717,141,091.80/458,511.70 - Step 6: Final answer
x = 607,873.56
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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.