Finding the Fourth Proportional to 918,120.42, 1,266,905.57 and 530,877.24
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Solution
The fourth proportional to 918,120.42, 1,266,905.57 and 530,877.24 is: 732,552.42
Step by Step Solution
- Step 1: Write the proportion equation
918,120.42 : 1,266,905.57 = 530,877.24 : x - Step 2: Convert to fraction form
918,120.42/1,266,905.57 = 530,877.24/x - Step 3: Cross multiply
918,120.42x = 1,266,905.57 × 530,877.24 - Step 4: Simplify right side
918,120.42x = 672,571,332,342.23 - Step 5: Solve for x
x = 672,571,332,342.23/918,120.42 - Step 6: Final answer
x = 732,552.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.