Finding the Fourth Proportional to 912,718.13, 1,368,785.99 and 313,534.80
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Solution
The fourth proportional to 912,718.13, 1,368,785.99 and 313,534.80 is: 470,202.17
Step by Step Solution
- Step 1: Write the proportion equation
912,718.13 : 1,368,785.99 = 313,534.80 : x - Step 2: Convert to fraction form
912,718.13/1,368,785.99 = 313,534.80/x - Step 3: Cross multiply
912,718.13x = 1,368,785.99 × 313,534.80 - Step 4: Simplify right side
912,718.13x = 429,162,042,401.29 - Step 5: Solve for x
x = 429,162,042,401.29/912,718.13 - Step 6: Final answer
x = 470,202.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.