Finding the Fourth Proportional to 572,943.36, 790,385.40 and 381,712.08
Calculator
Solution
The fourth proportional to 572,943.36, 790,385.40 and 381,712.08 is: 526,578.50
Step by Step Solution
- Step 1: Write the proportion equation
572,943.36 : 790,385.40 = 381,712.08 : x - Step 2: Convert to fraction form
572,943.36/790,385.40 = 381,712.08/x - Step 3: Cross multiply
572,943.36x = 790,385.40 × 381,712.08 - Step 4: Simplify right side
572,943.36x = 301,699,655,035.63 - Step 5: Solve for x
x = 301,699,655,035.63/572,943.36 - Step 6: Final answer
x = 526,578.50
Related Problems
Find fourth proportional to 286,471.68, 395,192.70 and 190,856.04
Half scale
Find fourth proportional to 1,145,886.72, 1,580,770.80 and 763,424.16
Double scale
Find fourth proportional to 572,944.36, 790,386.78 and 381,713.08
Similar ratio
Find fourth proportional to 859,415.04, 1,185,578.10 and 572,568.12
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.