Finding the Fourth Proportional to 913,215.80, 1,369,823.70 and 414,579.80
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Solution
The fourth proportional to 913,215.80, 1,369,823.70 and 414,579.80 is: 621,869.70
Step by Step Solution
- Step 1: Write the proportion equation
913,215.80 : 1,369,823.70 = 414,579.80 : x - Step 2: Convert to fraction form
913,215.80/1,369,823.70 = 414,579.80/x - Step 3: Cross multiply
913,215.80x = 1,369,823.70 × 414,579.80 - Step 4: Simplify right side
913,215.80x = 567,901,235,581.26 - Step 5: Solve for x
x = 567,901,235,581.26/913,215.80 - Step 6: Final answer
x = 621,869.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.