Finding the Fourth Proportional to 535,602.21, 739,154.19 and 320,701.23
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Solution
The fourth proportional to 535,602.21, 739,154.19 and 320,701.23 is: 442,581.55
Step by Step Solution
- Step 1: Write the proportion equation
535,602.21 : 739,154.19 = 320,701.23 : x - Step 2: Convert to fraction form
535,602.21/739,154.19 = 320,701.23/x - Step 3: Cross multiply
535,602.21x = 739,154.19 × 320,701.23 - Step 4: Simplify right side
535,602.21x = 237,047,657,892.65 - Step 5: Solve for x
x = 237,047,657,892.65/535,602.21 - Step 6: Final answer
x = 442,581.55
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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.