Finding the Fourth Proportional to 1,385,277.68, 2,078,124.30 and 486,561
Calculator
Solution
The fourth proportional to 1,385,277.68, 2,078,124.30 and 486,561 is: 729,914.48
Step by Step Solution
- Step 1: Write the proportion equation
1,385,277.68 : 2,078,124.30 = 486,561 : x - Step 2: Convert to fraction form
1,385,277.68/2,078,124.30 = 486,561/x - Step 3: Cross multiply
1,385,277.68x = 2,078,124.30 × 486,561 - Step 4: Simplify right side
1,385,277.68x = 1,011,134,237,532.30 - Step 5: Solve for x
x = 1,011,134,237,532.30/1,385,277.68 - Step 6: Final answer
x = 729,914.48
Related Problems
Find fourth proportional to 692,638.84, 1,039,062.15 and 243,280.50
Half scale
Find fourth proportional to 2,770,555.36, 4,156,248.60 and 973,122
Double scale
Find fourth proportional to 1,385,278.68, 2,078,125.80 and 486,562
Similar ratio
Find fourth proportional to 2,077,916.52, 3,117,186.45 and 729,841.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.