Finding the Fourth Proportional to 742,585.28, 1,024,768.80 and 403,053.68
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Solution
The fourth proportional to 742,585.28, 1,024,768.80 and 403,053.68 is: 556,214.68
Step by Step Solution
- Step 1: Write the proportion equation
742,585.28 : 1,024,768.80 = 403,053.68 : x - Step 2: Convert to fraction form
742,585.28/1,024,768.80 = 403,053.68/x - Step 3: Cross multiply
742,585.28x = 1,024,768.80 × 403,053.68 - Step 4: Simplify right side
742,585.28x = 413,036,835,989.18 - Step 5: Solve for x
x = 413,036,835,989.18/742,585.28 - Step 6: Final answer
x = 556,214.68
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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.