Finding the Fourth Proportional to 785,901.48, 1,178,850.68 and 217,281.14
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Solution
The fourth proportional to 785,901.48, 1,178,850.68 and 217,281.14 is: 325,921.28
Step by Step Solution
- Step 1: Write the proportion equation
785,901.48 : 1,178,850.68 = 217,281.14 : x - Step 2: Convert to fraction form
785,901.48/1,178,850.68 = 217,281.14/x - Step 3: Cross multiply
785,901.48x = 1,178,850.68 × 217,281.14 - Step 4: Simplify right side
785,901.48x = 256,142,019,640.18 - Step 5: Solve for x
x = 256,142,019,640.18/785,901.48 - Step 6: Final answer
x = 325,921.28
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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.