Finding the Fourth Proportional to 812,607.77, 1,121,026.55 and 526,220.12
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Solution
The fourth proportional to 812,607.77, 1,121,026.55 and 526,220.12 is: 725,942.75
Step by Step Solution
- Step 1: Write the proportion equation
812,607.77 : 1,121,026.55 = 526,220.12 : x - Step 2: Convert to fraction form
812,607.77/1,121,026.55 = 526,220.12/x - Step 3: Cross multiply
812,607.77x = 1,121,026.55 × 526,220.12 - Step 4: Simplify right side
812,607.77x = 589,906,717,427.95 - Step 5: Solve for x
x = 589,906,717,427.95/812,607.77 - Step 6: Final answer
x = 725,942.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.