Finding the Fourth Proportional to 1,312,148.95, 1,967,928.12 and 470,700.70
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Solution
The fourth proportional to 1,312,148.95, 1,967,928.12 and 470,700.70 is: 705,945.12
Step by Step Solution
- Step 1: Write the proportion equation
1,312,148.95 : 1,967,928.12 = 470,700.70 : x - Step 2: Convert to fraction form
1,312,148.95/1,967,928.12 = 470,700.70/x - Step 3: Cross multiply
1,312,148.95x = 1,967,928.12 × 470,700.70 - Step 4: Simplify right side
1,312,148.95x = 926,305,143,633.68 - Step 5: Solve for x
x = 926,305,143,633.68/1,312,148.95 - Step 6: Final answer
x = 705,945.12
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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.