Finding the Fourth Proportional to 742,364.54, 1,024,465.88 and 402,832.79
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Solution
The fourth proportional to 742,364.54, 1,024,465.88 and 402,832.79 is: 555,910.78
Step by Step Solution
- Step 1: Write the proportion equation
742,364.54 : 1,024,465.88 = 402,832.79 : x - Step 2: Convert to fraction form
742,364.54/1,024,465.88 = 402,832.79/x - Step 3: Cross multiply
742,364.54x = 1,024,465.88 × 402,832.79 - Step 4: Simplify right side
742,364.54x = 412,688,448,700.21 - Step 5: Solve for x
x = 412,688,448,700.21/742,364.54 - Step 6: Final answer
x = 555,910.78
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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.