Finding the Fourth Proportional to 556,860.71, 768,356.62 and 338,923.41
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Solution
The fourth proportional to 556,860.71, 768,356.62 and 338,923.41 is: 467,646.65
Step by Step Solution
- Step 1: Write the proportion equation
556,860.71 : 768,356.62 = 338,923.41 : x - Step 2: Convert to fraction form
556,860.71/768,356.62 = 338,923.41/x - Step 3: Cross multiply
556,860.71x = 768,356.62 × 338,923.41 - Step 4: Simplify right side
556,860.71x = 260,414,045,746.47 - Step 5: Solve for x
x = 260,414,045,746.47/556,860.71 - Step 6: Final answer
x = 467,646.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.