Finding the Fourth Proportional to 740,007.08, 1,021,209.36 and 417,719.96
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Solution
The fourth proportional to 740,007.08, 1,021,209.36 and 417,719.96 is: 576,453.31
Step by Step Solution
- Step 1: Write the proportion equation
740,007.08 : 1,021,209.36 = 417,719.96 : x - Step 2: Convert to fraction form
740,007.08/1,021,209.36 = 417,719.96/x - Step 3: Cross multiply
740,007.08x = 1,021,209.36 × 417,719.96 - Step 4: Simplify right side
740,007.08x = 426,579,533,010.83 - Step 5: Solve for x
x = 426,579,533,010.83/740,007.08 - Step 6: Final answer
x = 576,453.31
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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.