Finding the Fourth Proportional to 1,317,303.28, 1,817,878.14 and 713,691.28
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Solution
The fourth proportional to 1,317,303.28, 1,817,878.14 and 713,691.28 is: 984,893.76
Step by Step Solution
- Step 1: Write the proportion equation
1,317,303.28 : 1,817,878.14 = 713,691.28 : x - Step 2: Convert to fraction form
1,317,303.28/1,817,878.14 = 713,691.28/x - Step 3: Cross multiply
1,317,303.28x = 1,817,878.14 × 713,691.28 - Step 4: Simplify right side
1,317,303.28x = 1,297,403,776,620.62 - Step 5: Solve for x
x = 1,297,403,776,620.62/1,317,303.28 - Step 6: Final answer
x = 984,893.76
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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.