Finding the Fourth Proportional to 831,247.08, 1,246,423.50 and 430,895.40
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Solution
The fourth proportional to 831,247.08, 1,246,423.50 and 430,895.40 is: 646,111.33
Step by Step Solution
- Step 1: Write the proportion equation
831,247.08 : 1,246,423.50 = 430,895.40 : x - Step 2: Convert to fraction form
831,247.08/1,246,423.50 = 430,895.40/x - Step 3: Cross multiply
831,247.08x = 1,246,423.50 × 430,895.40 - Step 4: Simplify right side
831,247.08x = 537,078,152,601.90 - Step 5: Solve for x
x = 537,078,152,601.90/831,247.08 - Step 6: Final answer
x = 646,111.33
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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.