Finding the Fourth Proportional to 1,122,292.16, 1,548,740.76 and 638,846.92
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Solution
The fourth proportional to 1,122,292.16, 1,548,740.76 and 638,846.92 is: 881,595.99
Step by Step Solution
- Step 1: Write the proportion equation
1,122,292.16 : 1,548,740.76 = 638,846.92 : x - Step 2: Convert to fraction form
1,122,292.16/1,548,740.76 = 638,846.92/x - Step 3: Cross multiply
1,122,292.16x = 1,548,740.76 × 638,846.92 - Step 4: Simplify right side
1,122,292.16x = 989,408,264,404.46 - Step 5: Solve for x
x = 989,408,264,404.46/1,122,292.16 - Step 6: Final answer
x = 881,595.99
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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.