Finding the Fourth Proportional to 457,788.80, 686,974.80 and 268,248.80
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Solution
The fourth proportional to 457,788.80, 686,974.80 and 268,248.80 is: 402,544.07
Step by Step Solution
- Step 1: Write the proportion equation
457,788.80 : 686,974.80 = 268,248.80 : x - Step 2: Convert to fraction form
457,788.80/686,974.80 = 268,248.80/x - Step 3: Cross multiply
457,788.80x = 686,974.80 × 268,248.80 - Step 4: Simplify right side
457,788.80x = 184,280,165,730.24 - Step 5: Solve for x
x = 184,280,165,730.24/457,788.80 - Step 6: Final answer
x = 402,544.07
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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.