Finding the Fourth Proportional to 742,515.88, 1,024,672.66 and 402,984.28
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Solution
The fourth proportional to 742,515.88, 1,024,672.66 and 402,984.28 is: 556,118.71
Step by Step Solution
- Step 1: Write the proportion equation
742,515.88 : 1,024,672.66 = 402,984.28 : x - Step 2: Convert to fraction form
742,515.88/1,024,672.66 = 402,984.28/x - Step 3: Cross multiply
742,515.88x = 1,024,672.66 × 402,984.28 - Step 4: Simplify right side
742,515.88x = 412,926,974,125.79 - Step 5: Solve for x
x = 412,926,974,125.79/742,515.88 - Step 6: Final answer
x = 556,118.71
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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.