Finding the Fourth Proportional to 1,539,921.80, 2,124,758.22 and 860,835.08
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Solution
The fourth proportional to 1,539,921.80, 2,124,758.22 and 860,835.08 is: 1,187,765.77
Step by Step Solution
- Step 1: Write the proportion equation
1,539,921.80 : 2,124,758.22 = 860,835.08 : x - Step 2: Convert to fraction form
1,539,921.80/2,124,758.22 = 860,835.08/x - Step 3: Cross multiply
1,539,921.80x = 2,124,758.22 × 860,835.08 - Step 4: Simplify right side
1,539,921.80x = 1,829,066,401,670.57 - Step 5: Solve for x
x = 1,829,066,401,670.57/1,539,921.80 - Step 6: Final answer
x = 1,187,765.77
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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.