Finding the Fourth Proportional to 1,238,226.92, 1,708,029.19 and 778,614.08
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Solution
The fourth proportional to 1,238,226.92, 1,708,029.19 and 778,614.08 is: 1,074,032.19
Step by Step Solution
- Step 1: Write the proportion equation
1,238,226.92 : 1,708,029.19 = 778,614.08 : x - Step 2: Convert to fraction form
1,238,226.92/1,708,029.19 = 778,614.08/x - Step 3: Cross multiply
1,238,226.92x = 1,708,029.19 × 778,614.08 - Step 4: Simplify right side
1,238,226.92x = 1,329,895,565,898.31 - Step 5: Solve for x
x = 1,329,895,565,898.31/1,238,226.92 - Step 6: Final answer
x = 1,074,032.19
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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.