Finding the Fourth Proportional to 742,518.56, 1,024,675.36 and 402,986.81
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Solution
The fourth proportional to 742,518.56, 1,024,675.36 and 402,986.81 is: 556,121.66
Step by Step Solution
- Step 1: Write the proportion equation
742,518.56 : 1,024,675.36 = 402,986.81 : x - Step 2: Convert to fraction form
742,518.56/1,024,675.36 = 402,986.81/x - Step 3: Cross multiply
742,518.56x = 1,024,675.36 × 402,986.81 - Step 4: Simplify right side
742,518.56x = 412,930,648,481.16 - Step 5: Solve for x
x = 412,930,648,481.16/742,518.56 - Step 6: Final answer
x = 556,121.66
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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.