Finding the Fourth Proportional to 1,312,291.55, 1,969,202.79 and 713,315.99
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Solution
The fourth proportional to 1,312,291.55, 1,969,202.79 and 713,315.99 is: 1,070,390.07
Step by Step Solution
- Step 1: Write the proportion equation
1,312,291.55 : 1,969,202.79 = 713,315.99 : x - Step 2: Convert to fraction form
1,312,291.55/1,969,202.79 = 713,315.99/x - Step 3: Cross multiply
1,312,291.55x = 1,969,202.79 × 713,315.99 - Step 4: Simplify right side
1,312,291.55x = 1,404,663,842,582.62 - Step 5: Solve for x
x = 1,404,663,842,582.62/1,312,291.55 - Step 6: Final answer
x = 1,070,390.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.