Finding the Fourth Proportional to 1,539,355.25, 2,124,375.90 and 860,291.75
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Solution
The fourth proportional to 1,539,355.25, 2,124,375.90 and 860,291.75 is: 1,187,239.31
Step by Step Solution
- Step 1: Write the proportion equation
1,539,355.25 : 2,124,375.90 = 860,291.75 : x - Step 2: Convert to fraction form
1,539,355.25/2,124,375.90 = 860,291.75/x - Step 3: Cross multiply
1,539,355.25x = 2,124,375.90 × 860,291.75 - Step 4: Simplify right side
1,539,355.25x = 1,827,583,060,668.83 - Step 5: Solve for x
x = 1,827,583,060,668.83/1,539,355.25 - Step 6: Final answer
x = 1,187,239.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.