Finding the Fourth Proportional to 1,397,530.62, 1,928,660.67 and 785,875.95
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Solution
The fourth proportional to 1,397,530.62, 1,928,660.67 and 785,875.95 is: 1,084,547.28
Step by Step Solution
- Step 1: Write the proportion equation
1,397,530.62 : 1,928,660.67 = 785,875.95 : x - Step 2: Convert to fraction form
1,397,530.62/1,928,660.67 = 785,875.95/x - Step 3: Cross multiply
1,397,530.62x = 1,928,660.67 × 785,875.95 - Step 4: Simplify right side
1,397,530.62x = 1,515,688,036,263.89 - Step 5: Solve for x
x = 1,515,688,036,263.89/1,397,530.62 - Step 6: Final answer
x = 1,084,547.28
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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.