Finding the Fourth Proportional to 859,579.20, 1,289,368.80 and 219,881.70
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Solution
The fourth proportional to 859,579.20, 1,289,368.80 and 219,881.70 is: 329,822.55
Step by Step Solution
- Step 1: Write the proportion equation
859,579.20 : 1,289,368.80 = 219,881.70 : x - Step 2: Convert to fraction form
859,579.20/1,289,368.80 = 219,881.70/x - Step 3: Cross multiply
859,579.20x = 1,289,368.80 × 219,881.70 - Step 4: Simplify right side
859,579.20x = 283,508,603,670.96 - Step 5: Solve for x
x = 283,508,603,670.96/859,579.20 - Step 6: Final answer
x = 329,822.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.