Finding the Fourth Proportional to 829,420.14, 1,243,389.32 and 323,863.50
Calculator
Solution
The fourth proportional to 829,420.14, 1,243,389.32 and 323,863.50 is: 485,505.95
Step by Step Solution
- Step 1: Write the proportion equation
829,420.14 : 1,243,389.32 = 323,863.50 : x - Step 2: Convert to fraction form
829,420.14/1,243,389.32 = 323,863.50/x - Step 3: Cross multiply
829,420.14x = 1,243,389.32 × 323,863.50 - Step 4: Simplify right side
829,420.14x = 402,688,411,630.53 - Step 5: Solve for x
x = 402,688,411,630.53/829,420.14 - Step 6: Final answer
x = 485,505.95
Related Problems
Find fourth proportional to 414,710.07, 621,694.66 and 161,931.75
Half scale
Find fourth proportional to 1,658,840.27, 2,486,778.65 and 647,726.99
Double scale
Find fourth proportional to 829,421.14, 1,243,390.82 and 323,864.50
Similar ratio
Find fourth proportional to 1,244,130.20, 1,865,083.98 and 485,795.24
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.