Finding the Fourth Proportional to 1,603,460.12, 2,212,159.05 and 915,170.18
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Solution
The fourth proportional to 1,603,460.12, 2,212,159.05 and 915,170.18 is: 1,262,583.32
Step by Step Solution
- Step 1: Write the proportion equation
1,603,460.12 : 2,212,159.05 = 915,170.18 : x - Step 2: Convert to fraction form
1,603,460.12/2,212,159.05 = 915,170.18/x - Step 3: Cross multiply
1,603,460.12x = 2,212,159.05 × 915,170.18 - Step 4: Simplify right side
1,603,460.12x = 2,024,501,995,977.13 - Step 5: Solve for x
x = 2,024,501,995,977.13/1,603,460.12 - Step 6: Final answer
x = 1,262,583.32
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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.