Finding the Fourth Proportional to 1,513,522.54, 2,087,376.08 and 1,278,925.74
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Solution
The fourth proportional to 1,513,522.54, 2,087,376.08 and 1,278,925.74 is: 1,763,831.68
Step by Step Solution
- Step 1: Write the proportion equation
1,513,522.54 : 2,087,376.08 = 1,278,925.74 : x - Step 2: Convert to fraction form
1,513,522.54/2,087,376.08 = 1,278,925.74/x - Step 3: Cross multiply
1,513,522.54x = 2,087,376.08 × 1,278,925.74 - Step 4: Simplify right side
1,513,522.54x = 2,669,598,997,772.30 - Step 5: Solve for x
x = 2,669,598,997,772.30/1,513,522.54 - Step 6: Final answer
x = 1,763,831.68
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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.