Finding the Fourth Proportional to 749,412.72, 1,034,126.76 and 422,707.68
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Solution
The fourth proportional to 749,412.72, 1,034,126.76 and 422,707.68 is: 583,301.18
Step by Step Solution
- Step 1: Write the proportion equation
749,412.72 : 1,034,126.76 = 422,707.68 : x - Step 2: Convert to fraction form
749,412.72/1,034,126.76 = 422,707.68/x - Step 3: Cross multiply
749,412.72x = 1,034,126.76 × 422,707.68 - Step 4: Simplify right side
749,412.72x = 437,133,323,545.52 - Step 5: Solve for x
x = 437,133,323,545.52/749,412.72 - Step 6: Final answer
x = 583,301.18
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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.