Finding the Fourth Proportional to 463,755.19, 639,980.73 and 257,036.76
Calculator
Solution
The fourth proportional to 463,755.19, 639,980.73 and 257,036.76 is: 354,709.94
Step by Step Solution
- Step 1: Write the proportion equation
463,755.19 : 639,980.73 = 257,036.76 : x - Step 2: Convert to fraction form
463,755.19/639,980.73 = 257,036.76/x - Step 3: Cross multiply
463,755.19x = 639,980.73 × 257,036.76 - Step 4: Simplify right side
463,755.19x = 164,498,574,826.16 - Step 5: Solve for x
x = 164,498,574,826.16/463,755.19 - Step 6: Final answer
x = 354,709.94
Related Problems
Find fourth proportional to 231,877.60, 319,990.37 and 128,518.38
Half scale
Find fourth proportional to 927,510.38, 1,279,961.47 and 514,073.52
Double scale
Find fourth proportional to 463,756.19, 639,982.11 and 257,037.76
Similar ratio
Find fourth proportional to 695,632.79, 959,971.10 and 385,555.14
1.5x scale
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.