Finding the Fourth Proportional to 785,909.99, 1,178,863.43 and 217,289.63
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Solution
The fourth proportional to 785,909.99, 1,178,863.43 and 217,289.63 is: 325,934.01
Step by Step Solution
- Step 1: Write the proportion equation
785,909.99 : 1,178,863.43 = 217,289.63 : x - Step 2: Convert to fraction form
785,909.99/1,178,863.43 = 217,289.63/x - Step 3: Cross multiply
785,909.99x = 1,178,863.43 × 217,289.63 - Step 4: Simplify right side
785,909.99x = 256,154,791,544.47 - Step 5: Solve for x
x = 256,154,791,544.47/785,909.99 - Step 6: Final answer
x = 325,934.01
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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.