Finding the Fourth Proportional to 742,657.12, 1,024,889.76 and 436,678.24
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Solution
The fourth proportional to 742,657.12, 1,024,889.76 and 436,678.24 is: 602,629.46
Step by Step Solution
- Step 1: Write the proportion equation
742,657.12 : 1,024,889.76 = 436,678.24 : x - Step 2: Convert to fraction form
742,657.12/1,024,889.76 = 436,678.24/x - Step 3: Cross multiply
742,657.12x = 1,024,889.76 × 436,678.24 - Step 4: Simplify right side
742,657.12x = 447,547,056,590.82 - Step 5: Solve for x
x = 447,547,056,590.82/742,657.12 - Step 6: Final answer
x = 602,629.46
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1.5x scale
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.