Finding the Fourth Proportional to 1,340,753.76, 1,850,276.67 and 728,947.68
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Solution
The fourth proportional to 1,340,753.76, 1,850,276.67 and 728,947.68 is: 1,005,967.63
Step by Step Solution
- Step 1: Write the proportion equation
1,340,753.76 : 1,850,276.67 = 728,947.68 : x - Step 2: Convert to fraction form
1,340,753.76/1,850,276.67 = 728,947.68/x - Step 3: Cross multiply
1,340,753.76x = 1,850,276.67 × 728,947.68 - Step 4: Simplify right side
1,340,753.76x = 1,348,754,885,954.63 - Step 5: Solve for x
x = 1,348,754,885,954.63/1,340,753.76 - Step 6: Final answer
x = 1,005,967.63
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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.