Finding the Fourth Proportional to 685,462.84, 1,028,371.65 and 401,393.41
Calculator
Solution
The fourth proportional to 685,462.84, 1,028,371.65 and 401,393.41 is: 602,193.99
Step by Step Solution
- Step 1: Write the proportion equation
685,462.84 : 1,028,371.65 = 401,393.41 : x - Step 2: Convert to fraction form
685,462.84/1,028,371.65 = 401,393.41/x - Step 3: Cross multiply
685,462.84x = 1,028,371.65 × 401,393.41 - Step 4: Simplify right side
685,462.84x = 412,781,599,264.67 - Step 5: Solve for x
x = 412,781,599,264.67/685,462.84 - Step 6: Final answer
x = 602,193.99
Related Problems
Find fourth proportional to 342,731.42, 514,185.82 and 200,696.70
Half scale
Find fourth proportional to 1,370,925.68, 2,056,743.29 and 802,786.82
Double scale
Find fourth proportional to 685,463.84, 1,028,373.15 and 401,394.41
Similar ratio
Find fourth proportional to 1,028,194.26, 1,542,557.47 and 602,090.11
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.