Finding the Fourth Proportional to 742,851.88, 1,025,135.53 and 403,320.13
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Solution
The fourth proportional to 742,851.88, 1,025,135.53 and 403,320.13 is: 556,581.74
Step by Step Solution
- Step 1: Write the proportion equation
742,851.88 : 1,025,135.53 = 403,320.13 : x - Step 2: Convert to fraction form
742,851.88/1,025,135.53 = 403,320.13/x - Step 3: Cross multiply
742,851.88x = 1,025,135.53 × 403,320.13 - Step 4: Simplify right side
742,851.88x = 413,457,791,656.08 - Step 5: Solve for x
x = 413,457,791,656.08/742,851.88 - Step 6: Final answer
x = 556,581.74
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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.