Finding the Fourth Proportional to 4,242,415.64, 6,363,655.73 and 1,209,778.91
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Solution
The fourth proportional to 4,242,415.64, 6,363,655.73 and 1,209,778.91 is: 1,814,677.56
Step by Step Solution
- Step 1: Write the proportion equation
4,242,415.64 : 6,363,655.73 = 1,209,778.91 : x - Step 2: Convert to fraction form
4,242,415.64/6,363,655.73 = 1,209,778.91/x - Step 3: Cross multiply
4,242,415.64x = 6,363,655.73 × 1,209,778.91 - Step 4: Simplify right side
4,242,415.64x = 7,698,616,463,860.82 - Step 5: Solve for x
x = 7,698,616,463,860.82/4,242,415.64 - Step 6: Final answer
x = 1,814,677.56
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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.