Finding the Fourth Proportional to 1,385,031.40, 2,077,028.70 and 486,125.80
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Solution
The fourth proportional to 1,385,031.40, 2,077,028.70 and 486,125.80 is: 729,006.75
Step by Step Solution
- Step 1: Write the proportion equation
1,385,031.40 : 2,077,028.70 = 486,125.80 : x - Step 2: Convert to fraction form
1,385,031.40/2,077,028.70 = 486,125.80/x - Step 3: Cross multiply
1,385,031.40x = 2,077,028.70 × 486,125.80 - Step 4: Simplify right side
1,385,031.40x = 1,009,697,238,410.46 - Step 5: Solve for x
x = 1,009,697,238,410.46/1,385,031.40 - Step 6: Final answer
x = 729,006.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.