Finding the Fourth Proportional to 1,378,281.27, 1,901,862.81 and 766,280.37
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Solution
The fourth proportional to 1,378,281.27, 1,901,862.81 and 766,280.37 is: 1,057,374.99
Step by Step Solution
- Step 1: Write the proportion equation
1,378,281.27 : 1,901,862.81 = 766,280.37 : x - Step 2: Convert to fraction form
1,378,281.27/1,901,862.81 = 766,280.37/x - Step 3: Cross multiply
1,378,281.27x = 1,901,862.81 × 766,280.37 - Step 4: Simplify right side
1,378,281.27x = 1,457,360,136,325.21 - Step 5: Solve for x
x = 1,457,360,136,325.21/1,378,281.27 - Step 6: Final answer
x = 1,057,374.99
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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.