Finding the Fourth Proportional to 1,430,898.21, 1,973,817.32 and 893,421.09
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Solution
The fourth proportional to 1,430,898.21, 1,973,817.32 and 893,421.09 is: 1,232,407.73
Step by Step Solution
- Step 1: Write the proportion equation
1,430,898.21 : 1,973,817.32 = 893,421.09 : x - Step 2: Convert to fraction form
1,430,898.21/1,973,817.32 = 893,421.09/x - Step 3: Cross multiply
1,430,898.21x = 1,973,817.32 × 893,421.09 - Step 4: Simplify right side
1,430,898.21x = 1,763,450,017,028.17 - Step 5: Solve for x
x = 1,763,450,017,028.17/1,430,898.21 - Step 6: Final answer
x = 1,232,407.73
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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.