Finding the Fourth Proportional to 989,169.30, 1,483,726.14 and 315,291.02
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Solution
The fourth proportional to 989,169.30, 1,483,726.14 and 315,291.02 is: 472,927.66
Step by Step Solution
- Step 1: Write the proportion equation
989,169.30 : 1,483,726.14 = 315,291.02 : x - Step 2: Convert to fraction form
989,169.30/1,483,726.14 = 315,291.02/x - Step 3: Cross multiply
989,169.30x = 1,483,726.14 × 315,291.02 - Step 4: Simplify right side
989,169.30x = 467,805,520,662.63 - Step 5: Solve for x
x = 467,805,520,662.63/989,169.30 - Step 6: Final answer
x = 472,927.66
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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.