Finding the Fourth Proportional to 3,420,407.76, 4,718,106.11 and 2,258,864.72
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Solution
The fourth proportional to 3,420,407.76, 4,718,106.11 and 2,258,864.72 is: 3,115,875.11
Step by Step Solution
- Step 1: Write the proportion equation
3,420,407.76 : 4,718,106.11 = 2,258,864.72 : x - Step 2: Convert to fraction form
3,420,407.76/4,718,106.11 = 2,258,864.72/x - Step 3: Cross multiply
3,420,407.76x = 4,718,106.11 × 2,258,864.72 - Step 4: Simplify right side
3,420,407.76x = 10,657,563,402,210.59 - Step 5: Solve for x
x = 10,657,563,402,210.59/3,420,407.76 - Step 6: Final answer
x = 3,115,875.11
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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.