Finding the Fourth Proportional to 2,258,784.80, 3,117,177.30 and 1,226,336.12
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Solution
The fourth proportional to 2,258,784.80, 3,117,177.30 and 1,226,336.12 is: 1,692,373.31
Step by Step Solution
- Step 1: Write the proportion equation
2,258,784.80 : 3,117,177.30 = 1,226,336.12 : x - Step 2: Convert to fraction form
2,258,784.80/3,117,177.30 = 1,226,336.12/x - Step 3: Cross multiply
2,258,784.80x = 3,117,177.30 × 1,226,336.12 - Step 4: Simplify right side
2,258,784.80x = 3,822,707,115,434.08 - Step 5: Solve for x
x = 3,822,707,115,434.08/2,258,784.80 - Step 6: Final answer
x = 1,692,373.31
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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.