Finding the Fourth Proportional to 815,386.24, 1,125,051.42 and 493,089.52
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Solution
The fourth proportional to 815,386.24, 1,125,051.42 and 493,089.52 is: 680,353.72
Step by Step Solution
- Step 1: Write the proportion equation
815,386.24 : 1,125,051.42 = 493,089.52 : x - Step 2: Convert to fraction form
815,386.24/1,125,051.42 = 493,089.52/x - Step 3: Cross multiply
815,386.24x = 1,125,051.42 × 493,089.52 - Step 4: Simplify right side
815,386.24x = 554,751,064,663.12 - Step 5: Solve for x
x = 554,751,064,663.12/815,386.24 - Step 6: Final answer
x = 680,353.72
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1.5x scale
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.