Finding the Fourth Proportional to 765,621.70, 1,056,547.53 and 426,089.98
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Solution
The fourth proportional to 765,621.70, 1,056,547.53 and 426,089.98 is: 587,998.38
Step by Step Solution
- Step 1: Write the proportion equation
765,621.70 : 1,056,547.53 = 426,089.98 : x - Step 2: Convert to fraction form
765,621.70/1,056,547.53 = 426,089.98/x - Step 3: Cross multiply
765,621.70x = 1,056,547.53 × 426,089.98 - Step 4: Simplify right side
765,621.70x = 450,184,315,926.75 - Step 5: Solve for x
x = 450,184,315,926.75/765,621.70 - Step 6: Final answer
x = 587,998.38
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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.