Finding the Fourth Proportional to 1,260,785.49, 1,739,875.85 and 716,921.28
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Solution
The fourth proportional to 1,260,785.49, 1,739,875.85 and 716,921.28 is: 989,346.75
Step by Step Solution
- Step 1: Write the proportion equation
1,260,785.49 : 1,739,875.85 = 716,921.28 : x - Step 2: Convert to fraction form
1,260,785.49/1,739,875.85 = 716,921.28/x - Step 3: Cross multiply
1,260,785.49x = 1,739,875.85 × 716,921.28 - Step 4: Simplify right side
1,260,785.49x = 1,247,354,020,526.94 - Step 5: Solve for x
x = 1,247,354,020,526.94/1,260,785.49 - Step 6: Final answer
x = 989,346.75
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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.