Finding the Fourth Proportional to 3,780,856.80, 5,671,803.60 and 1,256,248.80
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Solution
The fourth proportional to 3,780,856.80, 5,671,803.60 and 1,256,248.80 is: 1,884,545.45
Step by Step Solution
- Step 1: Write the proportion equation
3,780,856.80 : 5,671,803.60 = 1,256,248.80 : x - Step 2: Convert to fraction form
3,780,856.80/5,671,803.60 = 1,256,248.80/x - Step 3: Cross multiply
3,780,856.80x = 5,671,803.60 × 1,256,248.80 - Step 4: Simplify right side
3,780,856.80x = 7,125,196,466,335.68 - Step 5: Solve for x
x = 7,125,196,466,335.68/3,780,856.80 - Step 6: Final answer
x = 1,884,545.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.