Finding the Fourth Proportional to 1,572,118.60, 2,356,136.70 and 728,876.20
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Solution
The fourth proportional to 1,572,118.60, 2,356,136.70 and 728,876.20 is: 1,092,367.95
Step by Step Solution
- Step 1: Write the proportion equation
1,572,118.60 : 2,356,136.70 = 728,876.20 : x - Step 2: Convert to fraction form
1,572,118.60/2,356,136.70 = 728,876.20/x - Step 3: Cross multiply
1,572,118.60x = 2,356,136.70 × 728,876.20 - Step 4: Simplify right side
1,572,118.60x = 1,717,331,964,576.54 - Step 5: Solve for x
x = 1,717,331,964,576.54/1,572,118.60 - Step 6: Final answer
x = 1,092,367.95
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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.