Finding the Fourth Proportional to 1,397,545.60, 1,928,681.40 and 785,890.96
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Solution
The fourth proportional to 1,397,545.60, 1,928,681.40 and 785,890.96 is: 1,084,568.03
Step by Step Solution
- Step 1: Write the proportion equation
1,397,545.60 : 1,928,681.40 = 785,890.96 : x - Step 2: Convert to fraction form
1,397,545.60/1,928,681.40 = 785,890.96/x - Step 3: Cross multiply
1,397,545.60x = 1,928,681.40 × 785,890.96 - Step 4: Simplify right side
1,397,545.60x = 1,515,733,276,980.14 - Step 5: Solve for x
x = 1,515,733,276,980.14/1,397,545.60 - Step 6: Final answer
x = 1,084,568.03
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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.