Finding the Fourth Proportional to 546,430.60, 821,201.10 and 478,001.80
Calculator
Solution
The fourth proportional to 546,430.60, 821,201.10 and 478,001.80 is: 718,363.14
Step by Step Solution
- Step 1: Write the proportion equation
546,430.60 : 821,201.10 = 478,001.80 : x - Step 2: Convert to fraction form
546,430.60/821,201.10 = 478,001.80/x - Step 3: Cross multiply
546,430.60x = 821,201.10 × 478,001.80 - Step 4: Simplify right side
546,430.60x = 392,535,603,961.98 - Step 5: Solve for x
x = 392,535,603,961.98/546,430.60 - Step 6: Final answer
x = 718,363.14
Related Problems
Find fourth proportional to 273,215.30, 410,600.55 and 239,000.90
Half scale
Find fourth proportional to 1,092,861.20, 1,642,402.20 and 956,003.60
Double scale
Find fourth proportional to 546,431.60, 821,202.60 and 478,002.80
Similar ratio
Find fourth proportional to 819,645.90, 1,231,801.65 and 717,002.70
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.