Finding the Fourth Proportional to 1,505,893.35, 2,078,132.81 and 817,565.19
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Solution
The fourth proportional to 1,505,893.35, 2,078,132.81 and 817,565.19 is: 1,128,239.96
Step by Step Solution
- Step 1: Write the proportion equation
1,505,893.35 : 2,078,132.81 = 817,565.19 : x - Step 2: Convert to fraction form
1,505,893.35/2,078,132.81 = 817,565.19/x - Step 3: Cross multiply
1,505,893.35x = 2,078,132.81 × 817,565.19 - Step 4: Simplify right side
1,505,893.35x = 1,699,009,045,652.88 - Step 5: Solve for x
x = 1,699,009,045,652.88/1,505,893.35 - Step 6: Final answer
x = 1,128,239.96
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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.