Finding the Fourth Proportional to 1,539,420.29, 2,124,459.09 and 1,022,280.14
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Solution
The fourth proportional to 1,539,420.29, 2,124,459.09 and 1,022,280.14 is: 1,410,785.84
Step by Step Solution
- Step 1: Write the proportion equation
1,539,420.29 : 2,124,459.09 = 1,022,280.14 : x - Step 2: Convert to fraction form
1,539,420.29/2,124,459.09 = 1,022,280.14/x - Step 3: Cross multiply
1,539,420.29x = 2,124,459.09 × 1,022,280.14 - Step 4: Simplify right side
1,539,420.29x = 2,171,792,341,260.62 - Step 5: Solve for x
x = 2,171,792,341,260.62/1,539,420.29 - Step 6: Final answer
x = 1,410,785.84
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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.