Finding the Fourth Proportional to 654,769.40, 903,572.70 and 368,289.68
Calculator
Solution
The fourth proportional to 654,769.40, 903,572.70 and 368,289.68 is: 508,234.66
Step by Step Solution
- Step 1: Write the proportion equation
654,769.40 : 903,572.70 = 368,289.68 : x - Step 2: Convert to fraction form
654,769.40/903,572.70 = 368,289.68/x - Step 3: Cross multiply
654,769.40x = 903,572.70 × 368,289.68 - Step 4: Simplify right side
654,769.40x = 332,776,500,539.74 - Step 5: Solve for x
x = 332,776,500,539.74/654,769.40 - Step 6: Final answer
x = 508,234.66
Related Problems
Find fourth proportional to 327,384.70, 451,786.35 and 184,144.84
Half scale
Find fourth proportional to 1,309,538.80, 1,807,145.40 and 736,579.36
Double scale
Find fourth proportional to 654,770.40, 903,574.08 and 368,290.68
Similar ratio
Find fourth proportional to 982,154.10, 1,355,359.05 and 552,434.52
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.