Finding the Fourth Proportional to 1,327,988.92, 1,991,129.70 and 872,041.45
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Solution
The fourth proportional to 1,327,988.92, 1,991,129.70 and 872,041.45 is: 1,307,501.59
Step by Step Solution
- Step 1: Write the proportion equation
1,327,988.92 : 1,991,129.70 = 872,041.45 : x - Step 2: Convert to fraction form
1,327,988.92/1,991,129.70 = 872,041.45/x - Step 3: Cross multiply
1,327,988.92x = 1,991,129.70 × 872,041.45 - Step 4: Simplify right side
1,327,988.92x = 1,736,347,630,726.07 - Step 5: Solve for x
x = 1,736,347,630,726.07/1,327,988.92 - Step 6: Final answer
x = 1,307,501.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.