Finding the Fourth Proportional to 912,886.71, 1,369,454.65 and 380,283.19
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Solution
The fourth proportional to 912,886.71, 1,369,454.65 and 380,283.19 is: 570,476.68
Step by Step Solution
- Step 1: Write the proportion equation
912,886.71 : 1,369,454.65 = 380,283.19 : x - Step 2: Convert to fraction form
912,886.71/1,369,454.65 = 380,283.19/x - Step 3: Cross multiply
912,886.71x = 1,369,454.65 × 380,283.19 - Step 4: Simplify right side
912,886.71x = 520,780,578,487.99 - Step 5: Solve for x
x = 520,780,578,487.99/912,886.71 - Step 6: Final answer
x = 570,476.68
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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.