Finding the Fourth Proportional to 785,831.76, 1,084,578.84 and 463,621.68
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Solution
The fourth proportional to 785,831.76, 1,084,578.84 and 463,621.68 is: 639,875.21
Step by Step Solution
- Step 1: Write the proportion equation
785,831.76 : 1,084,578.84 = 463,621.68 : x - Step 2: Convert to fraction form
785,831.76/1,084,578.84 = 463,621.68/x - Step 3: Cross multiply
785,831.76x = 1,084,578.84 × 463,621.68 - Step 4: Simplify right side
785,831.76x = 502,834,263,893.25 - Step 5: Solve for x
x = 502,834,263,893.25/785,831.76 - Step 6: Final answer
x = 639,875.21
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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.