Finding the Fourth Proportional to 427,724.70, 641,587.05 and 425,267.10
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Solution
The fourth proportional to 427,724.70, 641,587.05 and 425,267.10 is: 637,900.65
Step by Step Solution
- Step 1: Write the proportion equation
427,724.70 : 641,587.05 = 425,267.10 : x - Step 2: Convert to fraction form
427,724.70/641,587.05 = 425,267.10/x - Step 3: Cross multiply
427,724.70x = 641,587.05 × 425,267.10 - Step 4: Simplify right side
427,724.70x = 272,845,864,151.06 - Step 5: Solve for x
x = 272,845,864,151.06/427,724.70 - Step 6: Final answer
x = 637,900.65
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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.