Finding the Fourth Proportional to 840,875.08, 1,161,671.36 and 551,174.28
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Solution
The fourth proportional to 840,875.08, 1,161,671.36 and 551,174.28 is: 761,448.87
Step by Step Solution
- Step 1: Write the proportion equation
840,875.08 : 1,161,671.36 = 551,174.28 : x - Step 2: Convert to fraction form
840,875.08/1,161,671.36 = 551,174.28/x - Step 3: Cross multiply
840,875.08x = 1,161,671.36 × 551,174.28 - Step 4: Simplify right side
840,875.08x = 640,283,375,444.62 - Step 5: Solve for x
x = 640,283,375,444.62/840,875.08 - Step 6: Final answer
x = 761,448.87
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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.