Finding the Fourth Proportional to 875,203.80, 1,312,805.70 and 342,547.80
Calculator
Solution
The fourth proportional to 875,203.80, 1,312,805.70 and 342,547.80 is: 513,821.70
Step by Step Solution
- Step 1: Write the proportion equation
875,203.80 : 1,312,805.70 = 342,547.80 : x - Step 2: Convert to fraction form
875,203.80/1,312,805.70 = 342,547.80/x - Step 3: Cross multiply
875,203.80x = 1,312,805.70 × 342,547.80 - Step 4: Simplify right side
875,203.80x = 449,698,704,362.46 - Step 5: Solve for x
x = 449,698,704,362.46/875,203.80 - Step 6: Final answer
x = 513,821.70
Related Problems
Find fourth proportional to 437,601.90, 656,402.85 and 171,273.90
Half scale
Find fourth proportional to 1,750,407.60, 2,625,611.40 and 685,095.60
Double scale
Find fourth proportional to 875,204.80, 1,312,807.20 and 342,548.80
Similar ratio
Find fourth proportional to 1,312,805.70, 1,969,208.55 and 513,821.70
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.