Finding the Fourth Proportional to 2,248,781.40, 3,103,391.88 and 1,281,894.12
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Solution
The fourth proportional to 2,248,781.40, 3,103,391.88 and 1,281,894.12 is: 1,769,055.81
Step by Step Solution
- Step 1: Write the proportion equation
2,248,781.40 : 3,103,391.88 = 1,281,894.12 : x - Step 2: Convert to fraction form
2,248,781.40/3,103,391.88 = 1,281,894.12/x - Step 3: Cross multiply
2,248,781.40x = 3,103,391.88 × 1,281,894.12 - Step 4: Simplify right side
2,248,781.40x = 3,978,219,803,027.75 - Step 5: Solve for x
x = 3,978,219,803,027.75/2,248,781.40 - Step 6: Final answer
x = 1,769,055.81
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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.