Finding the Fourth Proportional to 817,368.84, 1,126,551.78 and 770,129.64
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Solution
The fourth proportional to 817,368.84, 1,126,551.78 and 770,129.64 is: 1,061,443.59
Step by Step Solution
- Step 1: Write the proportion equation
817,368.84 : 1,126,551.78 = 770,129.64 : x - Step 2: Convert to fraction form
817,368.84/1,126,551.78 = 770,129.64/x - Step 3: Cross multiply
817,368.84x = 1,126,551.78 × 770,129.64 - Step 4: Simplify right side
817,368.84x = 867,590,916,772.76 - Step 5: Solve for x
x = 867,590,916,772.76/817,368.84 - Step 6: Final answer
x = 1,061,443.59
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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.