Finding the Fourth Proportional to 725,931.20, 1,001,778.84 and 403,638.48
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Solution
The fourth proportional to 725,931.20, 1,001,778.84 and 403,638.48 is: 557,017.65
Step by Step Solution
- Step 1: Write the proportion equation
725,931.20 : 1,001,778.84 = 403,638.48 : x - Step 2: Convert to fraction form
725,931.20/1,001,778.84 = 403,638.48/x - Step 3: Cross multiply
725,931.20x = 1,001,778.84 × 403,638.48 - Step 4: Simplify right side
725,931.20x = 404,356,488,273.76 - Step 5: Solve for x
x = 404,356,488,273.76/725,931.20 - Step 6: Final answer
x = 557,017.65
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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.