Finding the Fourth Proportional to 1,312,768.68, 1,811,957.86 and 855,023.92
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Solution
The fourth proportional to 1,312,768.68, 1,811,957.86 and 855,023.92 is: 1,180,152.56
Step by Step Solution
- Step 1: Write the proportion equation
1,312,768.68 : 1,811,957.86 = 855,023.92 : x - Step 2: Convert to fraction form
1,312,768.68/1,811,957.86 = 855,023.92/x - Step 3: Cross multiply
1,312,768.68x = 1,811,957.86 × 855,023.92 - Step 4: Simplify right side
1,312,768.68x = 1,549,267,312,332.01 - Step 5: Solve for x
x = 1,549,267,312,332.01/1,312,768.68 - Step 6: Final answer
x = 1,180,152.56
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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.