Finding the Fourth Proportional to 1,430,478.06, 1,973,377.62 and 1,042,461.60
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Solution
The fourth proportional to 1,430,478.06, 1,973,377.62 and 1,042,461.60 is: 1,438,099.93
Step by Step Solution
- Step 1: Write the proportion equation
1,430,478.06 : 1,973,377.62 = 1,042,461.60 : x - Step 2: Convert to fraction form
1,430,478.06/1,973,377.62 = 1,042,461.60/x - Step 3: Cross multiply
1,430,478.06x = 1,973,377.62 × 1,042,461.60 - Step 4: Simplify right side
1,430,478.06x = 2,057,170,391,149.39 - Step 5: Solve for x
x = 2,057,170,391,149.39/1,430,478.06 - Step 6: Final answer
x = 1,438,099.93
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.