Finding the Fourth Proportional to 742,636.16, 1,024,810.40 and 403,097.12
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Solution
The fourth proportional to 742,636.16, 1,024,810.40 and 403,097.12 is: 556,259.10
Step by Step Solution
- Step 1: Write the proportion equation
742,636.16 : 1,024,810.40 = 403,097.12 : x - Step 2: Convert to fraction form
742,636.16/1,024,810.40 = 403,097.12/x - Step 3: Cross multiply
742,636.16x = 1,024,810.40 × 403,097.12 - Step 4: Simplify right side
742,636.16x = 413,098,120,786.05 - Step 5: Solve for x
x = 413,098,120,786.05/742,636.16 - Step 6: Final answer
x = 556,259.10
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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.