Finding the Fourth Proportional to 4,242,420.15, 6,363,662.49 and 1,209,783.41
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Solution
The fourth proportional to 4,242,420.15, 6,363,662.49 and 1,209,783.41 is: 1,814,684.31
Step by Step Solution
- Step 1: Write the proportion equation
4,242,420.15 : 6,363,662.49 = 1,209,783.41 : x - Step 2: Convert to fraction form
4,242,420.15/6,363,662.49 = 1,209,783.41/x - Step 3: Cross multiply
4,242,420.15x = 6,363,662.49 × 1,209,783.41 - Step 4: Simplify right side
4,242,420.15x = 7,698,653,275,422.98 - Step 5: Solve for x
x = 7,698,653,275,422.98/4,242,420.15 - Step 6: Final answer
x = 1,814,684.31
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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.