Finding the Fourth Proportional to 539,115.70, 808,673.55 and 456,171.70
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Solution
The fourth proportional to 539,115.70, 808,673.55 and 456,171.70 is: 684,257.55
Step by Step Solution
- Step 1: Write the proportion equation
539,115.70 : 808,673.55 = 456,171.70 : x - Step 2: Convert to fraction form
539,115.70/808,673.55 = 456,171.70/x - Step 3: Cross multiply
539,115.70x = 808,673.55 × 456,171.70 - Step 4: Simplify right side
539,115.70x = 368,893,988,048.54 - Step 5: Solve for x
x = 368,893,988,048.54/539,115.70 - Step 6: Final answer
x = 684,257.55
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Similar ratio
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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.