Finding the Fourth Proportional to 931,358.65, 1,395,869.28 and 398,252.79
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Solution
The fourth proportional to 931,358.65, 1,395,869.28 and 398,252.79 is: 596,879.45
Step by Step Solution
- Step 1: Write the proportion equation
931,358.65 : 1,395,869.28 = 398,252.79 : x - Step 2: Convert to fraction form
931,358.65/1,395,869.28 = 398,252.79/x - Step 3: Cross multiply
931,358.65x = 1,395,869.28 × 398,252.79 - Step 4: Simplify right side
931,358.65x = 555,908,835,235.29 - Step 5: Solve for x
x = 555,908,835,235.29/931,358.65 - Step 6: Final answer
x = 596,879.45
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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.