Finding the Fourth Proportional to 742,237.20, 1,024,287.12 and 402,705.36
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Solution
The fourth proportional to 742,237.20, 1,024,287.12 and 402,705.36 is: 555,733.28
Step by Step Solution
- Step 1: Write the proportion equation
742,237.20 : 1,024,287.12 = 402,705.36 : x - Step 2: Convert to fraction form
742,237.20/1,024,287.12 = 402,705.36/x - Step 3: Cross multiply
742,237.20x = 1,024,287.12 × 402,705.36 - Step 4: Simplify right side
742,237.20x = 412,485,913,402.96 - Step 5: Solve for x
x = 412,485,913,402.96/742,237.20 - Step 6: Final answer
x = 555,733.28
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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.