Finding the Fourth Proportional to 664,525.80, 996,788.70 and 243,965.70
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Solution
The fourth proportional to 664,525.80, 996,788.70 and 243,965.70 is: 365,948.55
Step by Step Solution
- Step 1: Write the proportion equation
664,525.80 : 996,788.70 = 243,965.70 : x - Step 2: Convert to fraction form
664,525.80/996,788.70 = 243,965.70/x - Step 3: Cross multiply
664,525.80x = 996,788.70 × 243,965.70 - Step 4: Simplify right side
664,525.80x = 243,182,252,947.59 - Step 5: Solve for x
x = 243,182,252,947.59/664,525.80 - Step 6: Final answer
x = 365,948.55
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Double scale
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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.