Finding the Fourth Proportional to 1,390,588.26, 1,919,206.24 and 1,004,652.70
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Solution
The fourth proportional to 1,390,588.26, 1,919,206.24 and 1,004,652.70 is: 1,386,561.20
Step by Step Solution
- Step 1: Write the proportion equation
1,390,588.26 : 1,919,206.24 = 1,004,652.70 : x - Step 2: Convert to fraction form
1,390,588.26/1,919,206.24 = 1,004,652.70/x - Step 3: Cross multiply
1,390,588.26x = 1,919,206.24 × 1,004,652.70 - Step 4: Simplify right side
1,390,588.26x = 1,928,135,730,872.85 - Step 5: Solve for x
x = 1,928,135,730,872.85/1,390,588.26 - Step 6: Final answer
x = 1,386,561.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.