Finding the Fourth Proportional to 860,142.84, 1,187,037.63 and 478,176
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Solution
The fourth proportional to 860,142.84, 1,187,037.63 and 478,176 is: 659,905.40
Step by Step Solution
- Step 1: Write the proportion equation
860,142.84 : 1,187,037.63 = 478,176 : x - Step 2: Convert to fraction form
860,142.84/1,187,037.63 = 478,176/x - Step 3: Cross multiply
860,142.84x = 1,187,037.63 × 478,176 - Step 4: Simplify right side
860,142.84x = 567,612,905,762.88 - Step 5: Solve for x
x = 567,612,905,762.88/860,142.84 - Step 6: Final answer
x = 659,905.40
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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.