Finding the Fourth Proportional to 909,865.07, 1,364,748.40 and 278,780.71
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Solution
The fourth proportional to 909,865.07, 1,364,748.40 and 278,780.71 is: 418,155.99
Step by Step Solution
- Step 1: Write the proportion equation
909,865.07 : 1,364,748.40 = 278,780.71 : x - Step 2: Convert to fraction form
909,865.07/1,364,748.40 = 278,780.71/x - Step 3: Cross multiply
909,865.07x = 1,364,748.40 × 278,780.71 - Step 4: Simplify right side
909,865.07x = 380,465,527,923.36 - Step 5: Solve for x
x = 380,465,527,923.36/909,865.07 - Step 6: Final answer
x = 418,155.99
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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.