Finding the Fourth Proportional to 780,921.48, 1,170,045.36 and 426,184.68
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Solution
The fourth proportional to 780,921.48, 1,170,045.36 and 426,184.68 is: 638,547.43
Step by Step Solution
- Step 1: Write the proportion equation
780,921.48 : 1,170,045.36 = 426,184.68 : x - Step 2: Convert to fraction form
780,921.48/1,170,045.36 = 426,184.68/x - Step 3: Cross multiply
780,921.48x = 1,170,045.36 × 426,184.68 - Step 4: Simplify right side
780,921.48x = 498,655,407,337.09 - Step 5: Solve for x
x = 498,655,407,337.09/780,921.48 - Step 6: Final answer
x = 638,547.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.