Finding the Fourth Proportional to 1,569,642.70, 2,354,464.05 and 387,690.70
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Solution
The fourth proportional to 1,569,642.70, 2,354,464.05 and 387,690.70 is: 581,536.05
Step by Step Solution
- Step 1: Write the proportion equation
1,569,642.70 : 2,354,464.05 = 387,690.70 : x - Step 2: Convert to fraction form
1,569,642.70/2,354,464.05 = 387,690.70/x - Step 3: Cross multiply
1,569,642.70x = 2,354,464.05 × 387,690.70 - Step 4: Simplify right side
1,569,642.70x = 912,803,815,669.34 - Step 5: Solve for x
x = 912,803,815,669.34/1,569,642.70 - Step 6: Final answer
x = 581,536.05
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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.