Finding the Fourth Proportional to 916,252.92, 1,264,371.48 and 553,462.20
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Solution
The fourth proportional to 916,252.92, 1,264,371.48 and 553,462.20 is: 763,743.07
Step by Step Solution
- Step 1: Write the proportion equation
916,252.92 : 1,264,371.48 = 553,462.20 : x - Step 2: Convert to fraction form
916,252.92/1,264,371.48 = 553,462.20/x - Step 3: Cross multiply
916,252.92x = 1,264,371.48 × 553,462.20 - Step 4: Simplify right side
916,252.92x = 699,781,820,938.06 - Step 5: Solve for x
x = 699,781,820,938.06/916,252.92 - Step 6: Final answer
x = 763,743.07
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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.