Finding the Fourth Proportional to 664,756.93, 916,261.59 and 470,916.29
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Solution
The fourth proportional to 664,756.93, 916,261.59 and 470,916.29 is: 649,083.12
Step by Step Solution
- Step 1: Write the proportion equation
664,756.93 : 916,261.59 = 470,916.29 : x - Step 2: Convert to fraction form
664,756.93/916,261.59 = 470,916.29/x - Step 3: Cross multiply
664,756.93x = 916,261.59 × 470,916.29 - Step 4: Simplify right side
664,756.93x = 431,482,506,523.61 - Step 5: Solve for x
x = 431,482,506,523.61/664,756.93 - Step 6: Final answer
x = 649,083.12
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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.