Finding the Fourth Proportional to 608,438.80, 912,658.20 and 409,373.20
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Solution
The fourth proportional to 608,438.80, 912,658.20 and 409,373.20 is: 614,059.80
Step by Step Solution
- Step 1: Write the proportion equation
608,438.80 : 912,658.20 = 409,373.20 : x - Step 2: Convert to fraction form
608,438.80/912,658.20 = 409,373.20/x - Step 3: Cross multiply
608,438.80x = 912,658.20 × 409,373.20 - Step 4: Simplify right side
608,438.80x = 373,617,807,840.24 - Step 5: Solve for x
x = 373,617,807,840.24/608,438.80 - Step 6: Final answer
x = 614,059.80
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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.