Finding the Fourth Proportional to 2,076,985.80, 3,115,478.70 and 878,509.80
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Solution
The fourth proportional to 2,076,985.80, 3,115,478.70 and 878,509.80 is: 1,317,764.70
Step by Step Solution
- Step 1: Write the proportion equation
2,076,985.80 : 3,115,478.70 = 878,509.80 : x - Step 2: Convert to fraction form
2,076,985.80/3,115,478.70 = 878,509.80/x - Step 3: Cross multiply
2,076,985.80x = 3,115,478.70 × 878,509.80 - Step 4: Simplify right side
2,076,985.80x = 2,736,978,569,641.26 - Step 5: Solve for x
x = 2,736,978,569,641.26/2,076,985.80 - Step 6: Final answer
x = 1,317,764.70
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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.