Finding the Fourth Proportional to 1,277,718.32, 1,916,162.80 and 424,560.84
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Solution
The fourth proportional to 1,277,718.32, 1,916,162.80 and 424,560.84 is: 636,703.47
Step by Step Solution
- Step 1: Write the proportion equation
1,277,718.32 : 1,916,162.80 = 424,560.84 : x - Step 2: Convert to fraction form
1,277,718.32/1,916,162.80 = 424,560.84/x - Step 3: Cross multiply
1,277,718.32x = 1,916,162.80 × 424,560.84 - Step 4: Simplify right side
1,277,718.32x = 813,527,687,944.75 - Step 5: Solve for x
x = 813,527,687,944.75/1,277,718.32 - Step 6: Final answer
x = 636,703.47
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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.