Finding the Fourth Proportional to 579,493.20, 869,239.80 and 549,968.70
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Solution
The fourth proportional to 579,493.20, 869,239.80 and 549,968.70 is: 824,953.05
Step by Step Solution
- Step 1: Write the proportion equation
579,493.20 : 869,239.80 = 549,968.70 : x - Step 2: Convert to fraction form
579,493.20/869,239.80 = 549,968.70/x - Step 3: Cross multiply
579,493.20x = 869,239.80 × 549,968.70 - Step 4: Simplify right side
579,493.20x = 478,054,682,794.26 - Step 5: Solve for x
x = 478,054,682,794.26/579,493.20 - Step 6: Final answer
x = 824,953.05
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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.