Finding the Fourth Proportional to 3,478,598.18, 5,217,845.40 and 1,205,777.06
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Solution
The fourth proportional to 3,478,598.18, 5,217,845.40 and 1,205,777.06 is: 1,808,647.61
Step by Step Solution
- Step 1: Write the proportion equation
3,478,598.18 : 5,217,845.40 = 1,205,777.06 : x - Step 2: Convert to fraction form
3,478,598.18/5,217,845.40 = 1,205,777.06/x - Step 3: Cross multiply
3,478,598.18x = 5,217,845.40 × 1,205,777.06 - Step 4: Simplify right side
3,478,598.18x = 6,291,558,285,946.53 - Step 5: Solve for x
x = 6,291,558,285,946.53/3,478,598.18 - Step 6: Final answer
x = 1,808,647.61
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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.