Finding the Fourth Proportional to 715,419,000.80, 1,073,128,501.20 and 560,450,805.20
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Solution
The fourth proportional to 715,419,000.80, 1,073,128,501.20 and 560,450,805.20 is: 840,676,207.80
Step by Step Solution
- Step 1: Write the proportion equation
715,419,000.80 : 1,073,128,501.20 = 560,450,805.20 : x - Step 2: Convert to fraction form
715,419,000.80/1,073,128,501.20 = 560,450,805.20/x - Step 3: Cross multiply
715,419,000.80x = 1,073,128,501.20 × 560,450,805.20 - Step 4: Simplify right side
715,419,000.80x = 601,435,732,580,609,280 - Step 5: Solve for x
x = 601,435,732,580,609,280/715,419,000.80 - Step 6: Final answer
x = 840,676,207.80
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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.