Finding the Fourth Proportional to 1,543,440.30, 2,315,247.93 and 478,633.74
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Solution
The fourth proportional to 1,543,440.30, 2,315,247.93 and 478,633.74 is: 717,977.74
Step by Step Solution
- Step 1: Write the proportion equation
1,543,440.30 : 2,315,247.93 = 478,633.74 : x - Step 2: Convert to fraction form
1,543,440.30/2,315,247.93 = 478,633.74/x - Step 3: Cross multiply
1,543,440.30x = 2,315,247.93 × 478,633.74 - Step 4: Simplify right side
1,543,440.30x = 1,108,155,775,763.16 - Step 5: Solve for x
x = 1,108,155,775,763.16/1,543,440.30 - Step 6: Final answer
x = 717,977.74
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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.