Finding the Fourth Proportional to 1,567,454.84, 2,351,161.25 and 430,215.70
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Solution
The fourth proportional to 1,567,454.84, 2,351,161.25 and 430,215.70 is: 645,317.78
Step by Step Solution
- Step 1: Write the proportion equation
1,567,454.84 : 2,351,161.25 = 430,215.70 : x - Step 2: Convert to fraction form
1,567,454.84/2,351,161.25 = 430,215.70/x - Step 3: Cross multiply
1,567,454.84x = 2,351,161.25 × 430,215.70 - Step 4: Simplify right side
1,567,454.84x = 1,011,506,474,952.64 - Step 5: Solve for x
x = 1,011,506,474,952.64/1,567,454.84 - Step 6: Final answer
x = 645,317.78
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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.