Finding the Fourth Proportional to 1,898,178.12, 2,619,482.04 and 1,038,738.24
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Solution
The fourth proportional to 1,898,178.12, 2,619,482.04 and 1,038,738.24 is: 1,433,456.71
Step by Step Solution
- Step 1: Write the proportion equation
1,898,178.12 : 2,619,482.04 = 1,038,738.24 : x - Step 2: Convert to fraction form
1,898,178.12/2,619,482.04 = 1,038,738.24/x - Step 3: Cross multiply
1,898,178.12x = 2,619,482.04 × 1,038,738.24 - Step 4: Simplify right side
1,898,178.12x = 2,720,956,163,941.21 - Step 5: Solve for x
x = 2,720,956,163,941.21/1,898,178.12 - Step 6: Final answer
x = 1,433,456.71
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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.