Finding the Fourth Proportional to 898,235.33, 1,239,594.09 and 490,358.92
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Solution
The fourth proportional to 898,235.33, 1,239,594.09 and 490,358.92 is: 676,711.32
Step by Step Solution
- Step 1: Write the proportion equation
898,235.33 : 1,239,594.09 = 490,358.92 : x - Step 2: Convert to fraction form
898,235.33/1,239,594.09 = 490,358.92/x - Step 3: Cross multiply
898,235.33x = 1,239,594.09 × 490,358.92 - Step 4: Simplify right side
898,235.33x = 607,846,017,031.22 - Step 5: Solve for x
x = 607,846,017,031.22/898,235.33 - Step 6: Final answer
x = 676,711.32
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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.