Finding the Fourth Proportional to 1,431,402.84, 1,975,340 and 819,564.98
Calculator
Solution
The fourth proportional to 1,431,402.84, 1,975,340 and 819,564.98 is: 1,131,002.01
Step by Step Solution
- Step 1: Write the proportion equation
1,431,402.84 : 1,975,340 = 819,564.98 : x - Step 2: Convert to fraction form
1,431,402.84/1,975,340 = 819,564.98/x - Step 3: Cross multiply
1,431,402.84x = 1,975,340 × 819,564.98 - Step 4: Simplify right side
1,431,402.84x = 1,618,919,487,593.20 - Step 5: Solve for x
x = 1,618,919,487,593.20/1,431,402.84 - Step 6: Final answer
x = 1,131,002.01
Related Problems
Find fourth proportional to 715,701.42, 987,670 and 409,782.49
Half scale
Find fourth proportional to 2,862,805.68, 3,950,680 and 1,639,129.96
Double scale
Find fourth proportional to 1,431,403.84, 1,975,341.38 and 819,565.98
Similar ratio
Find fourth proportional to 2,147,104.26, 2,963,010 and 1,229,347.47
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.