Finding the Fourth Proportional to 903,326.99, 1,243,461.98 and 780,763.05
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Solution
The fourth proportional to 903,326.99, 1,243,461.98 and 780,763.05 is: 1,074,748.33
Step by Step Solution
- Step 1: Write the proportion equation
903,326.99 : 1,243,461.98 = 780,763.05 : x - Step 2: Convert to fraction form
903,326.99/1,243,461.98 = 780,763.05/x - Step 3: Cross multiply
903,326.99x = 1,243,461.98 × 780,763.05 - Step 4: Simplify right side
903,326.99x = 970,849,170,015.75 - Step 5: Solve for x
x = 970,849,170,015.75/903,326.99 - Step 6: Final answer
x = 1,074,748.33
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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.