Finding the Fourth Proportional to 740,657.84, 1,022,170.76 and 418,427.08
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Solution
The fourth proportional to 740,657.84, 1,022,170.76 and 418,427.08 is: 577,464.93
Step by Step Solution
- Step 1: Write the proportion equation
740,657.84 : 1,022,170.76 = 418,427.08 : x - Step 2: Convert to fraction form
740,657.84/1,022,170.76 = 418,427.08/x - Step 3: Cross multiply
740,657.84x = 1,022,170.76 × 418,427.08 - Step 4: Simplify right side
740,657.84x = 427,703,926,368.18 - Step 5: Solve for x
x = 427,703,926,368.18/740,657.84 - Step 6: Final answer
x = 577,464.93
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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.