Finding the Fourth Proportional to 684,069.72, 1,026,107.01 and 210,752.70
Calculator
Solution
The fourth proportional to 684,069.72, 1,026,107.01 and 210,752.70 is: 316,129.80
Step by Step Solution
- Step 1: Write the proportion equation
684,069.72 : 1,026,107.01 = 210,752.70 : x - Step 2: Convert to fraction form
684,069.72/1,026,107.01 = 210,752.70/x - Step 3: Cross multiply
684,069.72x = 1,026,107.01 × 210,752.70 - Step 4: Simplify right side
684,069.72x = 216,254,822,846.43 - Step 5: Solve for x
x = 216,254,822,846.43/684,069.72 - Step 6: Final answer
x = 316,129.80
Related Problems
Find fourth proportional to 342,034.86, 513,053.51 and 105,376.35
Half scale
Find fourth proportional to 1,368,139.44, 2,052,214.02 and 421,505.40
Double scale
Find fourth proportional to 684,070.72, 1,026,108.51 and 210,753.70
Similar ratio
Find fourth proportional to 1,026,104.58, 1,539,160.52 and 316,129.05
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.