Finding the Fourth Proportional to 519,246.40, 779,128.80 and 294,779.20
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Solution
The fourth proportional to 519,246.40, 779,128.80 and 294,779.20 is: 442,315.95
Step by Step Solution
- Step 1: Write the proportion equation
519,246.40 : 779,128.80 = 294,779.20 : x - Step 2: Convert to fraction form
519,246.40/779,128.80 = 294,779.20/x - Step 3: Cross multiply
519,246.40x = 779,128.80 × 294,779.20 - Step 4: Simplify right side
519,246.40x = 229,670,964,360.96 - Step 5: Solve for x
x = 229,670,964,360.96/519,246.40 - Step 6: Final answer
x = 442,315.95
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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.