Finding the Fourth Proportional to 1,268,276.40, 1,750,331.70 and 695,428.20
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Solution
The fourth proportional to 1,268,276.40, 1,750,331.70 and 695,428.20 is: 959,751.38
Step by Step Solution
- Step 1: Write the proportion equation
1,268,276.40 : 1,750,331.70 = 695,428.20 : x - Step 2: Convert to fraction form
1,268,276.40/1,750,331.70 = 695,428.20/x - Step 3: Cross multiply
1,268,276.40x = 1,750,331.70 × 695,428.20 - Step 4: Simplify right side
1,268,276.40x = 1,217,230,023,533.94 - Step 5: Solve for x
x = 1,217,230,023,533.94/1,268,276.40 - Step 6: Final answer
x = 959,751.38
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1.5x scale
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.