Finding the Fourth Proportional to 1,216,497.68, 1,678,698.95 and 672,600.80
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Solution
The fourth proportional to 1,216,497.68, 1,678,698.95 and 672,600.80 is: 928,151.59
Step by Step Solution
- Step 1: Write the proportion equation
1,216,497.68 : 1,678,698.95 = 672,600.80 : x - Step 2: Convert to fraction form
1,216,497.68/1,678,698.95 = 672,600.80/x - Step 3: Cross multiply
1,216,497.68x = 1,678,698.95 × 672,600.80 - Step 4: Simplify right side
1,216,497.68x = 1,129,094,248,335.67 - Step 5: Solve for x
x = 1,129,094,248,335.67/1,216,497.68 - Step 6: Final answer
x = 928,151.59
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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.