Finding the Fourth Proportional to 915,830.84, 1,263,907.36 and 507,949.87
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Solution
The fourth proportional to 915,830.84, 1,263,907.36 and 507,949.87 is: 701,004.54
Step by Step Solution
- Step 1: Write the proportion equation
915,830.84 : 1,263,907.36 = 507,949.87 : x - Step 2: Convert to fraction form
915,830.84/1,263,907.36 = 507,949.87/x - Step 3: Cross multiply
915,830.84x = 1,263,907.36 × 507,949.87 - Step 4: Simplify right side
915,830.84x = 642,001,579,204.04 - Step 5: Solve for x
x = 642,001,579,204.04/915,830.84 - Step 6: Final answer
x = 701,004.54
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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.