Finding the Fourth Proportional to 457,683.80, 686,525.70 and 411,027.80
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Solution
The fourth proportional to 457,683.80, 686,525.70 and 411,027.80 is: 616,541.70
Step by Step Solution
- Step 1: Write the proportion equation
457,683.80 : 686,525.70 = 411,027.80 : x - Step 2: Convert to fraction form
457,683.80/686,525.70 = 411,027.80/x - Step 3: Cross multiply
457,683.80x = 686,525.70 × 411,027.80 - Step 4: Simplify right side
457,683.80x = 282,181,148,114.46 - Step 5: Solve for x
x = 282,181,148,114.46/457,683.80 - Step 6: Final answer
x = 616,541.70
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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.