Finding the Fourth Proportional to 1,248,446.91, 1,871,883.05 and 687,875.07
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Solution
The fourth proportional to 1,248,446.91, 1,871,883.05 and 687,875.07 is: 1,031,378.80
Step by Step Solution
- Step 1: Write the proportion equation
1,248,446.91 : 1,871,883.05 = 687,875.07 : x - Step 2: Convert to fraction form
1,248,446.91/1,871,883.05 = 687,875.07/x - Step 3: Cross multiply
1,248,446.91x = 1,871,883.05 × 687,875.07 - Step 4: Simplify right side
1,248,446.91x = 1,287,621,680,611.19 - Step 5: Solve for x
x = 1,287,621,680,611.19/1,248,446.91 - Step 6: Final answer
x = 1,031,378.80
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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.