Finding the Fourth Proportional to 742,171.84, 1,024,197.52 and 402,640
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Solution
The fourth proportional to 742,171.84, 1,024,197.52 and 402,640 is: 555,643.41
Step by Step Solution
- Step 1: Write the proportion equation
742,171.84 : 1,024,197.52 = 402,640 : x - Step 2: Convert to fraction form
742,171.84/1,024,197.52 = 402,640/x - Step 3: Cross multiply
742,171.84x = 1,024,197.52 × 402,640 - Step 4: Simplify right side
742,171.84x = 412,382,889,452.80 - Step 5: Solve for x
x = 412,382,889,452.80/742,171.84 - Step 6: Final answer
x = 555,643.41
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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.