Finding the Fourth Proportional to 688,119.27, 1,032,178.95 and 214,845.18
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Solution
The fourth proportional to 688,119.27, 1,032,178.95 and 214,845.18 is: 322,267.78
Step by Step Solution
- Step 1: Write the proportion equation
688,119.27 : 1,032,178.95 = 214,845.18 : x - Step 2: Convert to fraction form
688,119.27/1,032,178.95 = 214,845.18/x - Step 3: Cross multiply
688,119.27x = 1,032,178.95 × 214,845.18 - Step 4: Simplify right side
688,119.27x = 221,758,668,434.29 - Step 5: Solve for x
x = 221,758,668,434.29/688,119.27 - Step 6: Final answer
x = 322,267.78
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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.