Finding the Fourth Proportional to 915,251.55, 1,372,891.74 and 346,479.99
Calculator
Solution
The fourth proportional to 915,251.55, 1,372,891.74 and 346,479.99 is: 519,725.44
Step by Step Solution
- Step 1: Write the proportion equation
915,251.55 : 1,372,891.74 = 346,479.99 : x - Step 2: Convert to fraction form
915,251.55/1,372,891.74 = 346,479.99/x - Step 3: Cross multiply
915,251.55x = 1,372,891.74 × 346,479.99 - Step 4: Simplify right side
915,251.55x = 475,679,516,346.28 - Step 5: Solve for x
x = 475,679,516,346.28/915,251.55 - Step 6: Final answer
x = 519,725.44
Related Problems
Find fourth proportional to 457,625.78, 686,445.87 and 173,240.00
Half scale
Find fourth proportional to 1,830,503.10, 2,745,783.48 and 692,959.98
Double scale
Find fourth proportional to 915,252.55, 1,372,893.24 and 346,480.99
Similar ratio
Find fourth proportional to 1,372,877.33, 2,059,337.61 and 519,719.99
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.