Finding the Fourth Proportional to 708,603,724.20, 1,062,905,586.30 and 611,668,885.80
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Solution
The fourth proportional to 708,603,724.20, 1,062,905,586.30 and 611,668,885.80 is: 917,503,328.70
Step by Step Solution
- Step 1: Write the proportion equation
708,603,724.20 : 1,062,905,586.30 = 611,668,885.80 : x - Step 2: Convert to fraction form
708,603,724.20/1,062,905,586.30 = 611,668,885.80/x - Step 3: Cross multiply
708,603,724.20x = 1,062,905,586.30 × 611,668,885.80 - Step 4: Simplify right side
708,603,724.20x = 650,146,275,682,716,672 - Step 5: Solve for x
x = 650,146,275,682,716,672/708,603,724.20 - Step 6: Final answer
x = 917,503,328.70
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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.