Finding the Fourth Proportional to 1,430,397.93, 1,973,970.09 and 777,036.15
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Solution
The fourth proportional to 1,430,397.93, 1,973,970.09 and 777,036.15 is: 1,072,321.27
Step by Step Solution
- Step 1: Write the proportion equation
1,430,397.93 : 1,973,970.09 = 777,036.15 : x - Step 2: Convert to fraction form
1,430,397.93/1,973,970.09 = 777,036.15/x - Step 3: Cross multiply
1,430,397.93x = 1,973,970.09 × 777,036.15 - Step 4: Simplify right side
1,430,397.93x = 1,533,846,118,948.75 - Step 5: Solve for x
x = 1,533,846,118,948.75/1,430,397.93 - Step 6: Final answer
x = 1,072,321.27
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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.