Finding the Fourth Proportional to 1,539,353.25, 2,124,373.14 and 860,289.75
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Solution
The fourth proportional to 1,539,353.25, 2,124,373.14 and 860,289.75 is: 1,187,236.55
Step by Step Solution
- Step 1: Write the proportion equation
1,539,353.25 : 2,124,373.14 = 860,289.75 : x - Step 2: Convert to fraction form
1,539,353.25/2,124,373.14 = 860,289.75/x - Step 3: Cross multiply
1,539,353.25x = 2,124,373.14 × 860,289.75 - Step 4: Simplify right side
1,539,353.25x = 1,827,576,437,517.32 - Step 5: Solve for x
x = 1,827,576,437,517.32/1,539,353.25 - Step 6: Final answer
x = 1,187,236.55
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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.