Finding the Fourth Proportional to 1,312,319.08, 1,811,000.34 and 708,707.08
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Solution
The fourth proportional to 1,312,319.08, 1,811,000.34 and 708,707.08 is: 978,015.78
Step by Step Solution
- Step 1: Write the proportion equation
1,312,319.08 : 1,811,000.34 = 708,707.08 : x - Step 2: Convert to fraction form
1,312,319.08/1,811,000.34 = 708,707.08/x - Step 3: Cross multiply
1,312,319.08x = 1,811,000.34 × 708,707.08 - Step 4: Simplify right side
1,312,319.08x = 1,283,468,762,840.41 - Step 5: Solve for x
x = 1,283,468,762,840.41/1,312,319.08 - Step 6: Final answer
x = 978,015.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.