Finding the Fourth Proportional to 742,356.56, 1,024,454.79 and 402,824.81
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Solution
The fourth proportional to 742,356.56, 1,024,454.79 and 402,824.81 is: 555,899.72
Step by Step Solution
- Step 1: Write the proportion equation
742,356.56 : 1,024,454.79 = 402,824.81 : x - Step 2: Convert to fraction form
742,356.56/1,024,454.79 = 402,824.81/x - Step 3: Cross multiply
742,356.56x = 1,024,454.79 × 402,824.81 - Step 4: Simplify right side
742,356.56x = 412,675,808,696.48 - Step 5: Solve for x
x = 412,675,808,696.48/742,356.56 - Step 6: Final answer
x = 555,899.72
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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.