Finding the Fourth Proportional to 464,721.63, 641,724.80 and 290,590.26
Calculator
Solution
The fourth proportional to 464,721.63, 641,724.80 and 290,590.26 is: 401,270.28
Step by Step Solution
- Step 1: Write the proportion equation
464,721.63 : 641,724.80 = 290,590.26 : x - Step 2: Convert to fraction form
464,721.63/641,724.80 = 290,590.26/x - Step 3: Cross multiply
464,721.63x = 641,724.80 × 290,590.26 - Step 4: Simplify right side
464,721.63x = 186,478,976,877.74 - Step 5: Solve for x
x = 186,478,976,877.74/464,721.63 - Step 6: Final answer
x = 401,270.28
Related Problems
Find fourth proportional to 232,360.81, 320,862.40 and 145,295.13
Half scale
Find fourth proportional to 929,443.26, 1,283,449.61 and 581,180.52
Double scale
Find fourth proportional to 464,722.63, 641,726.18 and 290,591.26
Similar ratio
Find fourth proportional to 697,082.44, 962,587.21 and 435,885.39
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.