Finding the Fourth Proportional to 715,665,220.60, 1,073,497,830.90 and 579,616,324.60
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Solution
The fourth proportional to 715,665,220.60, 1,073,497,830.90 and 579,616,324.60 is: 869,424,486.90
Step by Step Solution
- Step 1: Write the proportion equation
715,665,220.60 : 1,073,497,830.90 = 579,616,324.60 : x - Step 2: Convert to fraction form
715,665,220.60/1,073,497,830.90 = 579,616,324.60/x - Step 3: Cross multiply
715,665,220.60x = 1,073,497,830.90 × 579,616,324.60 - Step 4: Simplify right side
715,665,220.60x = 622,216,867,212,330,368 - Step 5: Solve for x
x = 622,216,867,212,330,368/715,665,220.60 - Step 6: Final answer
x = 869,424,486.90
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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.