Finding the Fourth Proportional to 520,261.84, 779,790.36 and 239,189.20
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Solution
The fourth proportional to 520,261.84, 779,790.36 and 239,189.20 is: 358,506.85
Step by Step Solution
- Step 1: Write the proportion equation
520,261.84 : 779,790.36 = 239,189.20 : x - Step 2: Convert to fraction form
520,261.84/779,790.36 = 239,189.20/x - Step 3: Cross multiply
520,261.84x = 779,790.36 × 239,189.20 - Step 4: Simplify right side
520,261.84x = 186,517,432,376.11 - Step 5: Solve for x
x = 186,517,432,376.11/520,261.84 - Step 6: Final answer
x = 358,506.85
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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.