Finding the Fourth Proportional to 738,878.79, 1,108,364.85 and 312,335.08
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Solution
The fourth proportional to 738,878.79, 1,108,364.85 and 312,335.08 is: 468,522.35
Step by Step Solution
- Step 1: Write the proportion equation
738,878.79 : 1,108,364.85 = 312,335.08 : x - Step 2: Convert to fraction form
738,878.79/1,108,364.85 = 312,335.08/x - Step 3: Cross multiply
738,878.79x = 1,108,364.85 × 312,335.08 - Step 4: Simplify right side
738,878.79x = 346,181,224,093.94 - Step 5: Solve for x
x = 346,181,224,093.94/738,878.79 - Step 6: Final answer
x = 468,522.35
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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.