Finding the Fourth Proportional to 708,589,600.70, 1,062,884,401.05 and 663,239,968.70
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Solution
The fourth proportional to 708,589,600.70, 1,062,884,401.05 and 663,239,968.70 is: 994,859,953.05
Step by Step Solution
- Step 1: Write the proportion equation
708,589,600.70 : 1,062,884,401.05 = 663,239,968.70 : x - Step 2: Convert to fraction form
708,589,600.70/1,062,884,401.05 = 663,239,968.70/x - Step 3: Cross multiply
708,589,600.70x = 1,062,884,401.05 × 663,239,968.70 - Step 4: Simplify right side
708,589,600.70x = 704,947,416,884,120,320 - Step 5: Solve for x
x = 704,947,416,884,120,320/708,589,600.70 - Step 6: Final answer
x = 994,859,953.05
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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.