Finding the Fourth Proportional to 1,143,073.84, 1,577,122.68 and 900,603.76
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Solution
The fourth proportional to 1,143,073.84, 1,577,122.68 and 900,603.76 is: 1,242,581.68
Step by Step Solution
- Step 1: Write the proportion equation
1,143,073.84 : 1,577,122.68 = 900,603.76 : x - Step 2: Convert to fraction form
1,143,073.84/1,577,122.68 = 900,603.76/x - Step 3: Cross multiply
1,143,073.84x = 1,577,122.68 × 900,603.76 - Step 4: Simplify right side
1,143,073.84x = 1,420,362,615,589.28 - Step 5: Solve for x
x = 1,420,362,615,589.28/1,143,073.84 - Step 6: Final answer
x = 1,242,581.68
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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.