Finding the Fourth Proportional to 785,228.63, 1,178,079.42 and 279,723.63
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Solution
The fourth proportional to 785,228.63, 1,178,079.42 and 279,723.63 is: 419,669.68
Step by Step Solution
- Step 1: Write the proportion equation
785,228.63 : 1,178,079.42 = 279,723.63 : x - Step 2: Convert to fraction form
785,228.63/1,178,079.42 = 279,723.63/x - Step 3: Cross multiply
785,228.63x = 1,178,079.42 × 279,723.63 - Step 4: Simplify right side
785,228.63x = 329,536,648,270.59 - Step 5: Solve for x
x = 329,536,648,270.59/785,228.63 - Step 6: Final answer
x = 419,669.68
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1.5x scale
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.