Finding the Fourth Proportional to 813,345.49, 1,122,416.76 and 450,823.81
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Solution
The fourth proportional to 813,345.49, 1,122,416.76 and 450,823.81 is: 622,136.85
Step by Step Solution
- Step 1: Write the proportion equation
813,345.49 : 1,122,416.76 = 450,823.81 : x - Step 2: Convert to fraction form
813,345.49/1,122,416.76 = 450,823.81/x - Step 3: Cross multiply
813,345.49x = 1,122,416.76 × 450,823.81 - Step 4: Simplify right side
813,345.49x = 506,012,200,151.06 - Step 5: Solve for x
x = 506,012,200,151.06/813,345.49 - Step 6: Final answer
x = 622,136.85
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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.