Finding the Fourth Proportional to 813,942.84, 1,123,312.14 and 474,403.80
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Solution
The fourth proportional to 813,942.84, 1,123,312.14 and 474,403.80 is: 654,718.64
Step by Step Solution
- Step 1: Write the proportion equation
813,942.84 : 1,123,312.14 = 474,403.80 : x - Step 2: Convert to fraction form
813,942.84/1,123,312.14 = 474,403.80/x - Step 3: Cross multiply
813,942.84x = 1,123,312.14 × 474,403.80 - Step 4: Simplify right side
813,942.84x = 532,903,547,802.13 - Step 5: Solve for x
x = 532,903,547,802.13/813,942.84 - Step 6: Final answer
x = 654,718.64
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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.