Finding the Fourth Proportional to 763,456.10, 1,145,184.15 and 698,137.70
Calculator
Solution
The fourth proportional to 763,456.10, 1,145,184.15 and 698,137.70 is: 1,047,206.55
Step by Step Solution
- Step 1: Write the proportion equation
763,456.10 : 1,145,184.15 = 698,137.70 : x - Step 2: Convert to fraction form
763,456.10/1,145,184.15 = 698,137.70/x - Step 3: Cross multiply
763,456.10x = 1,145,184.15 × 698,137.70 - Step 4: Simplify right side
763,456.10x = 799,496,228,557.46 - Step 5: Solve for x
x = 799,496,228,557.46/763,456.10 - Step 6: Final answer
x = 1,047,206.55
Related Problems
Find fourth proportional to 381,728.05, 572,592.08 and 349,068.85
Half scale
Find fourth proportional to 1,526,912.20, 2,290,368.30 and 1,396,275.40
Double scale
Find fourth proportional to 763,457.10, 1,145,185.65 and 698,138.70
Similar ratio
Find fourth proportional to 1,145,184.15, 1,717,776.23 and 1,047,206.55
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.