Finding the Fourth Proportional to 876,415.20, 1,313,715.60 and 476,210.40
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Solution
The fourth proportional to 876,415.20, 1,313,715.60 and 476,210.40 is: 713,822.66
Step by Step Solution
- Step 1: Write the proportion equation
876,415.20 : 1,313,715.60 = 476,210.40 : x - Step 2: Convert to fraction form
876,415.20/1,313,715.60 = 476,210.40/x - Step 3: Cross multiply
876,415.20x = 1,313,715.60 × 476,210.40 - Step 4: Simplify right side
876,415.20x = 625,605,031,362.24 - Step 5: Solve for x
x = 625,605,031,362.24/876,415.20 - Step 6: Final answer
x = 713,822.66
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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.