Finding the Fourth Proportional to 958,763.99, 1,438,695.47 and 390,040.11
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Solution
The fourth proportional to 958,763.99, 1,438,695.47 and 390,040.11 is: 585,283.70
Step by Step Solution
- Step 1: Write the proportion equation
958,763.99 : 1,438,695.47 = 390,040.11 : x - Step 2: Convert to fraction form
958,763.99/1,438,695.47 = 390,040.11/x - Step 3: Cross multiply
958,763.99x = 1,438,695.47 × 390,040.11 - Step 4: Simplify right side
958,763.99x = 561,148,940,350.40 - Step 5: Solve for x
x = 561,148,940,350.40/958,763.99 - Step 6: Final answer
x = 585,283.70
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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.